CWE-502
AllowedDeserialization of Untrusted Data
Abstraction: Base · Status: Draft
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
4830 vulnerabilities reference this CWE, most recent first.
GHSA-5F7G-3FFV-VJ72
Vulnerability from github – Published: 2026-03-25 18:31 – Updated: 2026-03-26 18:31Deserialization of Untrusted Data vulnerability in ThemeREX Work & Travel Company work-travel-company allows Object Injection.This issue affects Work & Travel Company: from n/a through <= 1.2.
{
"affected": [],
"aliases": [
"CVE-2026-27083"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-25T17:16:55Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in ThemeREX Work \u0026 Travel Company work-travel-company allows Object Injection.This issue affects Work \u0026 Travel Company: from n/a through \u003c= 1.2.",
"id": "GHSA-5f7g-3ffv-vj72",
"modified": "2026-03-26T18:31:34Z",
"published": "2026-03-25T18:31:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27083"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Theme/work-travel-company/vulnerability/wordpress-work-travel-company-theme-1-2-php-object-injection-vulnerability?_s_id=cve"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
GHSA-5F8C-3P29-X98Q
Vulnerability from github – Published: 2024-08-19 21:35 – Updated: 2026-04-01 18:31Deserialization of Untrusted Data vulnerability in myCred allows Object Injection.This issue affects myCred: from n/a through 2.7.2.
{
"affected": [],
"aliases": [
"CVE-2024-43354"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-19T20:15:08Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in myCred allows Object Injection.This issue affects myCred: from n/a through 2.7.2.",
"id": "GHSA-5f8c-3p29-x98q",
"modified": "2026-04-01T18:31:53Z",
"published": "2024-08-19T21:35:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43354"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Plugin/mycred/vulnerability/wordpress-mycred-plugin-2-7-2-php-object-injection-vulnerability?_s_id=cve"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/vulnerability/mycred/wordpress-mycred-plugin-2-7-2-php-object-injection-vulnerability?_s_id=cve"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
GHSA-5FF3-Q5H2-CV4J
Vulnerability from github – Published: 2026-06-17 18:35 – Updated: 2026-06-17 18:35Unauthenticated PHP Object Injection in EasyMeals <= 1.5.1 versions.
{
"affected": [],
"aliases": [
"CVE-2026-40753"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-17T13:20:36Z",
"severity": "HIGH"
},
"details": "Unauthenticated PHP Object Injection in EasyMeals \u003c= 1.5.1 versions.",
"id": "GHSA-5ff3-q5h2-cv4j",
"modified": "2026-06-17T18:35:50Z",
"published": "2026-06-17T18:35:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40753"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/theme/easymeals/vulnerability/wordpress-easymeals-theme-1-5-1-php-object-injection-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5FH8-2CHR-GVVQ
Vulnerability from github – Published: 2023-05-08 15:30 – Updated: 2024-04-04 03:50The AI ChatBot WordPress plugin before 4.4.7 unserializes user input from cookies via an AJAX action available to unauthenticated users, which could allow them to perform PHP Object Injection when a suitable gadget is present on the blog
{
"affected": [],
"aliases": [
"CVE-2023-1650"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-05-08T14:15:12Z",
"severity": "CRITICAL"
},
"details": "The AI ChatBot WordPress plugin before 4.4.7 unserializes user input from cookies via an AJAX action available to unauthenticated users, which could allow them to perform PHP Object Injection when a suitable gadget is present on the blog",
"id": "GHSA-5fh8-2chr-gvvq",
"modified": "2024-04-04T03:50:58Z",
"published": "2023-05-08T15:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1650"
},
{
"type": "WEB",
"url": "https://wpscan.com/vulnerability/7d7fe498-0aa3-4fa7-b560-610b42b2abed"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
GHSA-5FMQ-4FVM-96QG
Vulnerability from github – Published: 2025-06-03 15:31 – Updated: 2025-06-03 15:31A vulnerability was found in slackero phpwcms up to 1.9.45/1.10.8. It has been rated as critical. This issue affects the function file_get_contents/is_file of the file include/inc_lib/content/cnt21.readform.inc.php of the component Custom Source Tab. The manipulation of the argument cpage_custom leads to deserialization. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.9.46 and 1.10.9 is able to address this issue. It is recommended to upgrade the affected component.
{
"affected": [],
"aliases": [
"CVE-2025-5498"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-03T14:15:51Z",
"severity": "MODERATE"
},
"details": "A vulnerability was found in slackero phpwcms up to 1.9.45/1.10.8. It has been rated as critical. This issue affects the function file_get_contents/is_file of the file include/inc_lib/content/cnt21.readform.inc.php of the component Custom Source Tab. The manipulation of the argument cpage_custom leads to deserialization. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.9.46 and 1.10.9 is able to address this issue. It is recommended to upgrade the affected component.",
"id": "GHSA-5fmq-4fvm-96qg",
"modified": "2025-06-03T15:31:26Z",
"published": "2025-06-03T15:31:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5498"
},
{
"type": "WEB",
"url": "https://github.com/3em0/cve_repo/blob/main/phpwcms/cnt21.readform.inc.php%23file_get_contents.md"
},
{
"type": "WEB",
"url": "https://github.com/3em0/cve_repo/blob/main/phpwcms/cnt21.readform.inc.php%23is_file.md"
},
{
"type": "WEB",
"url": "https://github.com/slackero/phpwcms/releases/tag/v1.10.9"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.310913"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.310913"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.578054"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.578055"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-5FP4-3WWR-FQ9M
Vulnerability from github – Published: 2022-05-13 01:40 – Updated: 2022-05-13 01:40An elevation of privilege vulnerability in the Android framework (gatekeeperresponse). Product: Android. Versions: 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0. Android ID: A-62998805.
{
"affected": [],
"aliases": [
"CVE-2017-0806"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-10-04T01:29:00Z",
"severity": "HIGH"
},
"details": "An elevation of privilege vulnerability in the Android framework (gatekeeperresponse). Product: Android. Versions: 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0. Android ID: A-62998805.",
"id": "GHSA-5fp4-3wwr-fq9m",
"modified": "2022-05-13T01:40:45Z",
"published": "2022-05-13T01:40:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-0806"
},
{
"type": "WEB",
"url": "https://android.googlesource.com/platform/frameworks/base/+/b87c968e5a41a1a09166199bf54eee12608f3900"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2017-10-01"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/101086"
}
],
"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-5FVV-QQH5-FRX3
Vulnerability from github – Published: 2024-01-15 18:30 – Updated: 2024-01-19 18:30The Estatik Real Estate Plugin WordPress plugin before 4.1.1 unserializes user input via some of its cookies, which could allow unauthenticated users to perform PHP Object Injection when a suitable gadget chain is present on the blog
{
"affected": [],
"aliases": [
"CVE-2023-6049"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-15T16:15:12Z",
"severity": "CRITICAL"
},
"details": "The Estatik Real Estate Plugin WordPress plugin before 4.1.1 unserializes user input via some of its cookies, which could allow unauthenticated users to perform PHP Object Injection when a suitable gadget chain is present on the blog",
"id": "GHSA-5fvv-qqh5-frx3",
"modified": "2024-01-19T18:30:25Z",
"published": "2024-01-15T18:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6049"
},
{
"type": "WEB",
"url": "https://wpscan.com/vulnerability/8cfd8c1f-2834-4a94-a3fa-c0cfbe78a8b7"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
GHSA-5FX4-XH92-6XQM
Vulnerability from github – Published: 2026-06-17 18:35 – Updated: 2026-06-17 18:35Contributor PHP Object Injection in Avada <= 3.15.3 versions.
{
"affected": [],
"aliases": [
"CVE-2026-12256"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-17T13:19:57Z",
"severity": "HIGH"
},
"details": "Contributor PHP Object Injection in Avada \u003c= 3.15.3 versions.",
"id": "GHSA-5fx4-xh92-6xqm",
"modified": "2026-06-17T18:35:45Z",
"published": "2026-06-17T18:35:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12256"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/theme/avada/vulnerability/wordpress-avada-theme-3-15-3-php-object-injection-vulnerability?_s_id=cve"
}
],
"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"
}
]
}
GHSA-5G29-3F8W-5892
Vulnerability from github – Published: 2025-07-07 15:30 – Updated: 2025-07-07 15:30Mescius ActiveReports.NET ReadValue Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Mescius ActiveReports.NET. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the implementation of the ReadValue method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25246.
{
"affected": [],
"aliases": [
"CVE-2025-6810"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-07T15:15:32Z",
"severity": "CRITICAL"
},
"details": "Mescius ActiveReports.NET ReadValue Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Mescius ActiveReports.NET. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\n\nThe specific flaw exists within the implementation of the ReadValue method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25246.",
"id": "GHSA-5g29-3f8w-5892",
"modified": "2025-07-07T15:30:41Z",
"published": "2025-07-07T15:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6810"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-448"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
GHSA-5G3F-J849-RM6P
Vulnerability from github – Published: 2022-10-08 00:00 – Updated: 2022-10-11 19:00The vCenter Server contains an unsafe deserialisation vulnerability in the PSC (Platform services controller). A malicious actor with admin access on vCenter server may exploit this issue to execute arbitrary code on the underlying operating system that hosts the vCenter Server.
{
"affected": [],
"aliases": [
"CVE-2022-31680"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-07T21:15:00Z",
"severity": "CRITICAL"
},
"details": "The vCenter Server contains an unsafe deserialisation vulnerability in the PSC (Platform services controller). A malicious actor with admin access on vCenter server may exploit this issue to execute arbitrary code on the underlying operating system that hosts the vCenter Server.",
"id": "GHSA-5g3f-j849-rm6p",
"modified": "2022-10-11T19:00:55Z",
"published": "2022-10-08T00:00:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31680"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1587"
},
{
"type": "WEB",
"url": "https://www.vmware.com/security/advisories/VMSA-2022-0025.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
If available, use the signing/sealing features of the programming language to assure that deserialized data has not been tainted. For example, a hash-based message authentication code (HMAC) could be used to ensure that data has not been modified.
Mitigation
When deserializing data, populate a new object rather than just deserializing. The result is that the data flows through safe input validation and that the functions are safe.
Mitigation
Explicitly define a final object() to prevent deserialization.
Mitigation
- Make fields transient to protect them from deserialization.
- An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.
Mitigation
Avoid having unnecessary types or gadgets (a sequence of instances and method invocations that can self-execute during the deserialization process, often found in libraries) available that can be leveraged for malicious ends. This limits the potential for unintended or unauthorized types and gadgets to be leveraged by the attacker. Add only acceptable classes to an allowlist. Note: new gadgets are constantly being discovered, so this alone is not a sufficient mitigation.
Mitigation
Employ cryptography of the data or code for protection. However, it's important to note that it would still be client-side security. This is risky because if the client is compromised then the security implemented on the client (the cryptography) can be bypassed.
Mitigation MIT-29
Strategy: Firewall
Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].
CAPEC-586: Object Injection
An adversary attempts to exploit an application by injecting additional, malicious content during its processing of serialized objects. Developers leverage serialization in order to convert data or state into a static, binary format for saving to disk or transferring over a network. These objects are then deserialized when needed to recover the data/state. By injecting a malformed object into a vulnerable application, an adversary can potentially compromise the application by manipulating the deserialization process. This can result in a number of unwanted outcomes, including remote code execution.