CWE-284
DiscouragedImproper Access Control
Abstraction: Pillar · Status: Incomplete
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
8370 vulnerabilities reference this CWE, most recent first.
GHSA-GF2Q-J2QQ-PJF2
Vulnerability from github – Published: 2022-05-17 05:22 – Updated: 2024-09-27 21:28OpenStack Keystone, as used in OpenStack Folsom before folsom-rc1 and OpenStack Essex (2012.1), allows remote attackers to add an arbitrary user to an arbitrary tenant via a request to update the user's default tenant to the administrative API. NOTE: this identifier was originally incorrectly assigned to an open redirect issue, but the correct identifier for that issue is CVE-2012-3540.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "keystone"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2012.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2012-3542"
],
"database_specific": {
"cwe_ids": [
"CWE-284"
],
"github_reviewed": true,
"github_reviewed_at": "2023-02-14T00:58:13Z",
"nvd_published_at": "2012-09-05T23:55:00Z",
"severity": "HIGH"
},
"details": "OpenStack Keystone, as used in OpenStack Folsom before folsom-rc1 and OpenStack Essex (2012.1), allows remote attackers to add an arbitrary user to an arbitrary tenant via a request to update the user\u0027s default tenant to the administrative API. NOTE: this identifier was originally incorrectly assigned to an open redirect issue, but the correct identifier for that issue is CVE-2012-3540.",
"id": "GHSA-gf2q-j2qq-pjf2",
"modified": "2024-09-27T21:28:19Z",
"published": "2022-05-17T05:22:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2012-3542"
},
{
"type": "WEB",
"url": "https://github.com/openstack/keystone/commit/5438d3b5a219d7c8fa67e66e538d325a61617155"
},
{
"type": "WEB",
"url": "https://github.com/openstack/keystone/commit/c13d0ba606f7b2bdc609a7f388334e5efec3f3aa"
},
{
"type": "WEB",
"url": "https://bugs.launchpad.net/keystone/+bug/1040626"
},
{
"type": "PACKAGE",
"url": "https://github.com/openstack/keystone"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2012-19.yaml"
},
{
"type": "WEB",
"url": "https://lists.launchpad.net/openstack/msg16282.html"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20121114023909/http://www.securityfocus.com/bid/55326"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20140802052724/http://secunia.com/advisories/50467"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20140804204333/http://secunia.com/advisories/50494"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2012/08/30/6"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1552-1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "OpenStack Keystone Allows Remote User Account Creation"
}
GHSA-GF33-6VMJ-35MQ
Vulnerability from github – Published: 2025-10-01 18:30 – Updated: 2025-10-01 18:30IBM Transformation Extender Advanced 10.0.1
could allow a local user to perform unauthorized actions due to improper access controls.
{
"affected": [],
"aliases": [
"CVE-2023-50300"
],
"database_specific": {
"cwe_ids": [
"CWE-284"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-01T17:15:37Z",
"severity": "MODERATE"
},
"details": "IBM Transformation Extender Advanced 10.0.1 \n\n\n\ncould allow a local user to perform unauthorized actions due to improper access controls.",
"id": "GHSA-gf33-6vmj-35mq",
"modified": "2025-10-01T18:30:39Z",
"published": "2025-10-01T18:30:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-50300"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7246882"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-GF57-H8XX-7G55
Vulnerability from github – Published: 2026-07-22 00:32 – Updated: 2026-07-22 00:32Vulnerability in the Oracle E-Business Tax product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle E-Business Tax. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle E-Business Tax accessible data as well as unauthorized access to critical data or complete access to all Oracle E-Business Tax accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
{
"affected": [],
"aliases": [
"CVE-2026-60972"
],
"database_specific": {
"cwe_ids": [
"CWE-284"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-21T22:18:30Z",
"severity": "HIGH"
},
"details": "Vulnerability in the Oracle E-Business Tax product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle E-Business Tax. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle E-Business Tax accessible data as well as unauthorized access to critical data or complete access to all Oracle E-Business Tax accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).",
"id": "GHSA-gf57-h8xx-7g55",
"modified": "2026-07-22T00:32:09Z",
"published": "2026-07-22T00:32:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-60972"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2026.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-GF5H-4PJR-GWJ4
Vulnerability from github – Published: 2024-10-10 21:30 – Updated: 2024-10-10 21:30Improper access control in some Intel(R) Thunderbolt(TM) DCH drivers for Windows before version 88 may allow an authenticated user to potentially enable denial of service via local access.
{
"affected": [],
"aliases": [
"CVE-2023-26585"
],
"database_specific": {
"cwe_ids": [
"CWE-284"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-14T14:15:44Z",
"severity": "MODERATE"
},
"details": "Improper access control in some Intel(R) Thunderbolt(TM) DCH drivers for Windows before version 88 may allow an authenticated user to potentially enable denial of service via local access.",
"id": "GHSA-gf5h-4pjr-gwj4",
"modified": "2024-10-10T21:30:41Z",
"published": "2024-10-10T21:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-26585"
},
{
"type": "WEB",
"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00851.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-GF9C-3X2G-HR2X
Vulnerability from github – Published: 2026-06-17 18:35 – Updated: 2026-06-17 18:35Vulnerability in the JD Edwards EnterpriseOne Human Resources Management product of Oracle JD Edwards (component: Human Resources). The supported version that is affected is 9.2. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise JD Edwards EnterpriseOne Human Resources Management. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all JD Edwards EnterpriseOne Human Resources Management accessible data as well as unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Human Resources Management accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
{
"affected": [],
"aliases": [
"CVE-2026-46892"
],
"database_specific": {
"cwe_ids": [
"CWE-284"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-17T10:54:06Z",
"severity": "CRITICAL"
},
"details": "Vulnerability in the JD Edwards EnterpriseOne Human Resources Management product of Oracle JD Edwards (component: Human Resources). The supported version that is affected is 9.2. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise JD Edwards EnterpriseOne Human Resources Management. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all JD Edwards EnterpriseOne Human Resources Management accessible data as well as unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Human Resources Management accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).",
"id": "GHSA-gf9c-3x2g-hr2x",
"modified": "2026-06-17T18:35:35Z",
"published": "2026-06-17T18:35:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46892"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cspujun2026.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-GFC9-6465-4R56
Vulnerability from github – Published: 2022-05-17 03:00 – Updated: 2022-05-17 03:00Vulnerability in the Oracle One-to-One Fulfillment component of Oracle E-Business Suite (subcomponent: Internal Operations). Supported versions that are affected are 12.1.1, 12.1.2, 12.1.3, 12.2.3, 12.2.4, 12.2.5 and 12.2.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle One-to-One Fulfillment. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle One-to-One Fulfillment accessible data as well as unauthorized access to critical data or complete access to all Oracle One-to-One Fulfillment accessible data. CVSS v3.0 Base Score 9.1 (Confidentiality and Integrity impacts).
{
"affected": [],
"aliases": [
"CVE-2016-8325"
],
"database_specific": {
"cwe_ids": [
"CWE-284"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-01-27T22:59:00Z",
"severity": "CRITICAL"
},
"details": "Vulnerability in the Oracle One-to-One Fulfillment component of Oracle E-Business Suite (subcomponent: Internal Operations). Supported versions that are affected are 12.1.1, 12.1.2, 12.1.3, 12.2.3, 12.2.4, 12.2.5 and 12.2.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle One-to-One Fulfillment. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle One-to-One Fulfillment accessible data as well as unauthorized access to critical data or complete access to all Oracle One-to-One Fulfillment accessible data. CVSS v3.0 Base Score 9.1 (Confidentiality and Integrity impacts).",
"id": "GHSA-gfc9-6465-4r56",
"modified": "2022-05-17T03:00:32Z",
"published": "2022-05-17T03:00:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-8325"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/security-advisory/cpujan2017-2881727.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/95595"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1037639"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-GFFW-JC7Q-499G
Vulnerability from github – Published: 2022-05-14 01:10 – Updated: 2022-05-14 01:10The ReadVIFFImage function in coders/viff.c in ImageMagick before 7.0.1-0 allows remote attackers to cause a denial of service (application crash) or have other unspecified impact via a crafted file.
{
"affected": [],
"aliases": [
"CVE-2016-10065"
],
"database_specific": {
"cwe_ids": [
"CWE-284"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-03-03T17:59:00Z",
"severity": "HIGH"
},
"details": "The ReadVIFFImage function in coders/viff.c in ImageMagick before 7.0.1-0 allows remote attackers to cause a denial of service (application crash) or have other unspecified impact via a crafted file.",
"id": "GHSA-gffw-jc7q-499g",
"modified": "2022-05-14T01:10:42Z",
"published": "2022-05-14T01:10:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-10065"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/issues/129"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/commit/134463b926fa965571aa4febd61b810be5e7da05"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1410482"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2017-02/msg00028.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/12/26/9"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/95213"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-GFJ2-M63M-4Q89
Vulnerability from github – Published: 2024-02-06 00:30 – Updated: 2026-04-08 18:32The RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to unauthorized data modification due to a missing capability check on the feedzy dashboard in all versions up to, and including, 4.4.1. This makes it possible for authenticated attackers, with contributor access or higher, to create, edit or delete feed categories created by them.
{
"affected": [],
"aliases": [
"CVE-2024-1092"
],
"database_specific": {
"cwe_ids": [
"CWE-284",
"CWE-862"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-05T22:16:07Z",
"severity": "MODERATE"
},
"details": "The RSS Aggregator by Feedzy \u2013 Feed to Post, Autoblogging, News \u0026 YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to unauthorized data modification due to a missing capability check on the feedzy dashboard in all versions up to, and including, 4.4.1. This makes it possible for authenticated attackers, with contributor access or higher, to create, edit or delete feed categories created by them.",
"id": "GHSA-gfj2-m63m-4q89",
"modified": "2026-04-08T18:32:34Z",
"published": "2024-02-06T00:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1092"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3030538%40feedzy-rss-feeds%2Ftrunk\u0026old=3028200%40feedzy-rss-feeds%2Ftrunk\u0026sfp_email=\u0026sfph_mail="
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3030538@feedzy-rss-feeds/trunk\u0026old=3028200@feedzy-rss-feeds/trunk\u0026sfp_email=\u0026sfph_mail="
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/98053141-fe97-4bd4-b820-b6cca3426109?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-GFJ4-WG89-M22R
Vulnerability from github – Published: 2022-12-28 15:30 – Updated: 2023-01-10 15:42In usememos/memos 0.9.0 and prior, users can edit and delete all other users' shortcuts.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 0.9.0"
},
"package": {
"ecosystem": "Go",
"name": "github.com/usememos/memos"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-4807"
],
"database_specific": {
"cwe_ids": [
"CWE-284"
],
"github_reviewed": true,
"github_reviewed_at": "2022-12-30T22:09:27Z",
"nvd_published_at": "2022-12-28T14:15:00Z",
"severity": "MODERATE"
},
"details": "In usememos/memos 0.9.0 and prior, users can edit and delete all other users\u0027 shortcuts.",
"id": "GHSA-gfj4-wg89-m22r",
"modified": "2023-01-10T15:42:51Z",
"published": "2022-12-28T15:30:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-4807"
},
{
"type": "WEB",
"url": "https://github.com/usememos/memos/commit/3556ae4e651d9443dc3bb8a170dd3cc726517a53"
},
{
"type": "PACKAGE",
"url": "https://github.com/usememos/memos"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/704c9ed7-2120-47ea-aaf0-5fdcbd492954"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
],
"summary": "usememos/memos Improper Access Control vulnerability"
}
GHSA-GFMV-VH34-H2X5
Vulnerability from github – Published: 2026-04-03 21:42 – Updated: 2026-04-06 23:13Summary
The SignalK Server exposes an unauthenticated HTTP endpoint that allows remote attackers to modify navigation data source priorities. This endpoint, accessible via PUT /signalk/v1/api/sourcePriorities, does not enforce authentication or authorization checks and directly assigns user-controlled input to the server configuration.
As a result, attackers can influence which GPS, AIS, or other sensor data sources are trusted by the system. The changes are immediately applied and persisted to disk, allowing the manipulation to survive server restarts.
Affected Component
- File:
src/serverroutes.ts - Endpoint:
PUT /signalk/v1/api/sourcePriorities(also accessible at/skServer/sourcePriorities) - Lines: 1064-1076
- Function: Source priorities configuration handler
Vulnerable Code
// src/serverroutes.ts - Lines 1064-1076
app.put(
`${SERVERROUTESPREFIX}/sourcePriorities`,
(req: Request, res: Response) => {
app.config.settings.sourcePriorities = req.body
app.activateSourcePriorities()
writeSettingsFile(app, app.config.settings, (err: any) => {
if (err) {
res
.status(500)
.send('Unable to save to sourcePrefences in settings file')
} else {
res.json({ result: 'ok' })
}
})
}
)
Vulnerability Characteristics
Missing Authentication: The endpoint has zero authentication middleware, allowing unauthenticated access from any network-adjacent attacker.
Direct Configuration Assignment: User-supplied request body is directly assigned to app.config.settings.sourcePriorities without validation or sanitization.
Persistent Storage: Malicious configuration is written to disk via writeSettingsFile(), ensuring changes survive server restarts. Live Configuration Update: Changes take effect immediately via activateSourcePriorities(), affecting live navigation data processing.
No Input Validation: No JSON schema validation, type checking, or field allowlisting is performed on the request body.
Impact
- Navigation Data Manipulation: Attackers can modify source priorities to change which existing, active source's data is being used
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "signalk-server"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.24.0-beta.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-33951"
],
"database_specific": {
"cwe_ids": [
"CWE-284",
"CWE-306"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-03T21:42:11Z",
"nvd_published_at": "2026-04-02T17:16:23Z",
"severity": "MODERATE"
},
"details": "## Summary\n\nThe SignalK Server exposes an unauthenticated HTTP endpoint that allows remote attackers to modify navigation data source priorities. This endpoint, accessible via `PUT /signalk/v1/api/sourcePriorities`, does not enforce authentication or authorization checks and directly assigns user-controlled input to the server configuration.\n\nAs a result, attackers can influence which GPS, AIS, or other sensor data sources are trusted by the system. The changes are immediately applied and persisted to disk, allowing the manipulation to survive server restarts.\n\n### Affected Component\n- **File**: `src/serverroutes.ts`\n- **Endpoint**: `PUT /signalk/v1/api/sourcePriorities` (also accessible at `/skServer/sourcePriorities`)\n- **Lines**: 1064-1076\n- **Function**: Source priorities configuration handler\n\n### Vulnerable Code\n\n```typescript\n// src/serverroutes.ts - Lines 1064-1076\napp.put(\n `${SERVERROUTESPREFIX}/sourcePriorities`,\n (req: Request, res: Response) =\u003e {\n app.config.settings.sourcePriorities = req.body\n app.activateSourcePriorities()\n writeSettingsFile(app, app.config.settings, (err: any) =\u003e {\n if (err) {\n res\n .status(500)\n .send(\u0027Unable to save to sourcePrefences in settings file\u0027)\n } else {\n res.json({ result: \u0027ok\u0027 })\n }\n })\n }\n)\n```\n## Vulnerability Characteristics\n\n**Missing Authentication**: The endpoint has zero authentication middleware, allowing unauthenticated access from any network-adjacent attacker.\n\n**Direct Configuration Assignment**: User-supplied request body is directly assigned to app.config.settings.sourcePriorities without validation or sanitization.\n\n**Persistent Storage**: Malicious configuration is written to disk via writeSettingsFile(), ensuring changes survive server restarts.\n**Live Configuration Update**: Changes take effect immediately via activateSourcePriorities(), affecting live navigation data processing.\n\n**No Input Validation**: No JSON schema validation, type checking, or field allowlisting is performed on the request body.\n\n## Impact\n- **Navigation Data Manipulation**: Attackers can modify source priorities to change which existing, active source\u0027s data is being used",
"id": "GHSA-gfmv-vh34-h2x5",
"modified": "2026-04-06T23:13:11Z",
"published": "2026-04-03T21:42:11Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/SignalK/signalk-server/security/advisories/GHSA-gfmv-vh34-h2x5"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33951"
},
{
"type": "PACKAGE",
"url": "https://github.com/SignalK/signalk-server"
},
{
"type": "WEB",
"url": "https://github.com/SignalK/signalk-server/releases/tag/v2.24.0-beta.1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Signal K Server: Unauthenticated Source Priorities Manipulation "
}
Mitigation MIT-1
Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
Mitigation MIT-46
Strategy: Separation of Privilege
- Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
- Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
CAPEC-19: Embedding Scripts within Scripts
An adversary leverages the capability to execute their own script by embedding it within other scripts that the target software is likely to execute due to programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts.
CAPEC-441: Malicious Logic Insertion
An adversary installs or adds malicious logic (also known as malware) into a seemingly benign component of a fielded system. This logic is often hidden from the user of the system and works behind the scenes to achieve negative impacts. With the proliferation of mass digital storage and inexpensive multimedia devices, Bluetooth and 802.11 support, new attack vectors for spreading malware are emerging for things we once thought of as innocuous greeting cards, picture frames, or digital projectors. This pattern of attack focuses on systems already fielded and used in operation as opposed to systems and their components that are still under development and part of the supply chain.
CAPEC-478: Modification of Windows Service Configuration
An adversary exploits a weakness in access control to modify the execution parameters of a Windows service. The goal of this attack is to execute a malicious binary in place of an existing service.
CAPEC-479: Malicious Root Certificate
An adversary exploits a weakness in authorization and installs a new root certificate on a compromised system. Certificates are commonly used for establishing secure TLS/SSL communications within a web browser. When a user attempts to browse a website that presents a certificate that is not trusted an error message will be displayed to warn the user of the security risk. Depending on the security settings, the browser may not allow the user to establish a connection to the website. Adversaries have used this technique to avoid security warnings prompting users when compromised systems connect over HTTPS to adversary controlled web servers that spoof legitimate websites in order to collect login credentials.
CAPEC-502: Intent Spoof
An adversary, through a previously installed malicious application, issues an intent directed toward a specific trusted application's component in an attempt to achieve a variety of different objectives including modification of data, information disclosure, and data injection. Components that have been unintentionally exported and made public are subject to this type of an attack. If the component trusts the intent's action without verififcation, then the target application performs the functionality at the adversary's request, helping the adversary achieve the desired negative technical impact.
CAPEC-503: WebView Exposure
An adversary, through a malicious web page, accesses application specific functionality by leveraging interfaces registered through WebView's addJavascriptInterface API. Once an interface is registered to WebView through addJavascriptInterface, it becomes global and all pages loaded in the WebView can call this interface.
CAPEC-536: Data Injected During Configuration
An attacker with access to data files and processes on a victim's system injects malicious data into critical operational data during configuration or recalibration, causing the victim's system to perform in a suboptimal manner that benefits the adversary.
CAPEC-546: Incomplete Data Deletion in a Multi-Tenant Environment
An adversary obtains unauthorized information due to insecure or incomplete data deletion in a multi-tenant environment. If a cloud provider fails to completely delete storage and data from former cloud tenants' systems/resources, once these resources are allocated to new, potentially malicious tenants, the latter can probe the provided resources for sensitive information still there.
CAPEC-550: Install New Service
When an operating system starts, it also starts programs called services or daemons. Adversaries may install a new service which will be executed at startup (on a Windows system, by modifying the registry). The service name may be disguised by using a name from a related operating system or benign software. Services are usually run with elevated privileges.
CAPEC-551: Modify Existing Service
When an operating system starts, it also starts programs called services or daemons. Modifying existing services may break existing services or may enable services that are disabled/not commonly used.
CAPEC-552: Install Rootkit
An adversary exploits a weakness in authentication to install malware that alters the functionality and information provide by targeted operating system API calls. Often referred to as rootkits, it is often used to hide the presence of programs, files, network connections, services, drivers, and other system components.
CAPEC-556: Replace File Extension Handlers
When a file is opened, its file handler is checked to determine which program opens the file. File handlers are configuration properties of many operating systems. Applications can modify the file handler for a given file extension to call an arbitrary program when a file with the given extension is opened.
CAPEC-558: Replace Trusted Executable
An adversary exploits weaknesses in privilege management or access control to replace a trusted executable with a malicious version and enable the execution of malware when that trusted executable is called.
CAPEC-562: Modify Shared File
An adversary manipulates the files in a shared location by adding malicious programs, scripts, or exploit code to valid content. Once a user opens the shared content, the tainted content is executed.
CAPEC-563: Add Malicious File to Shared Webroot
An adversaries may add malicious content to a website through the open file share and then browse to that content with a web browser to cause the server to execute the content. The malicious content will typically run under the context and permissions of the web server process, often resulting in local system or administrative privileges depending on how the web server is configured.
CAPEC-564: Run Software at Logon
Operating system allows logon scripts to be run whenever a specific user or users logon to a system. If adversaries can access these scripts, they may insert additional code into the logon script. This code can allow them to maintain persistence or move laterally within an enclave because it is executed every time the affected user or users logon to a computer. Modifying logon scripts can effectively bypass workstation and enclave firewalls. Depending on the access configuration of the logon scripts, either local credentials or a remote administrative account may be necessary.
CAPEC-578: Disable Security Software
An adversary exploits a weakness in access control to disable security tools so that detection does not occur. This can take the form of killing processes, deleting registry keys so that tools do not start at run time, deleting log files, or other methods.