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.
4794 vulnerabilities reference this CWE, most recent first.
GHSA-XHPV-XMQR-MF62
Vulnerability from github – Published: 2024-08-01 21:31 – Updated: 2024-08-01 21:31Deserialization of Untrusted Data vulnerability in MotoPress Timetable and Event Schedule allows Object Injection.This issue affects Timetable and Event Schedule: from n/a through 2.4.13.
{
"affected": [],
"aliases": [
"CVE-2024-39630"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-01T21:15:29Z",
"severity": "MODERATE"
},
"details": "Deserialization of Untrusted Data vulnerability in MotoPress Timetable and Event Schedule allows Object Injection.This issue affects Timetable and Event Schedule: from n/a through 2.4.13.",
"id": "GHSA-xhpv-xmqr-mf62",
"modified": "2024-08-01T21:31:41Z",
"published": "2024-08-01T21:31:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39630"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/vulnerability/mp-timetable/wordpress-timetable-and-event-schedule-by-motopress-plugin-2-4-13-php-object-injection-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-XJ3G-FFV7-WCPC
Vulnerability from github – Published: 2022-05-24 17:28 – Updated: 2022-07-01 00:01An issue was discovered in Hyland OnBase through 18.0.0.32 and 19.x through 19.8.9.1000. It uses XML deserialization libraries in an unsafe manner.
{
"affected": [],
"aliases": [
"CVE-2020-25259"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-09-11T03:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in Hyland OnBase through 18.0.0.32 and 19.x through 19.8.9.1000. It uses XML deserialization libraries in an unsafe manner.",
"id": "GHSA-xj3g-ffv7-wcpc",
"modified": "2022-07-01T00:01:13Z",
"published": "2022-05-24T17:28:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25259"
},
{
"type": "WEB",
"url": "https://seclists.org/fulldisclosure/2020/Sep/22"
}
],
"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-XJ3X-8J85-RXJV
Vulnerability from github – Published: 2025-04-11 09:30 – Updated: 2026-04-01 18:34Deserialization of Untrusted Data vulnerability in empik EmpikPlace for Woocommerce allows Object Injection. This issue affects EmpikPlace for Woocommerce: from n/a through 1.4.2.
{
"affected": [],
"aliases": [
"CVE-2025-32568"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-11T09:15:28Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in empik EmpikPlace for Woocommerce allows Object Injection. This issue affects EmpikPlace for Woocommerce: from n/a through 1.4.2.",
"id": "GHSA-xj3x-8j85-rxjv",
"modified": "2026-04-01T18:34:40Z",
"published": "2025-04-11T09:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-32568"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/empik-for-woocommerce/vulnerability/wordpress-empikplace-for-woocommerce-plugin-1-4-2-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-XJ7Q-Q94C-6WR3
Vulnerability from github – Published: 2022-05-17 00:25 – Updated: 2023-10-23 17:05The JMX server embedded in Apache James, also used by the command line client is exposed to a java de-serialization issue, and thus can be used to execute arbitrary commands. As James exposes JMX socket by default only on local-host, this vulnerability can only be used for privilege escalation. Release 3.0.1 upgrades the incriminated library.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.james:james-project"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2017-12628"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2023-07-27T00:18:01Z",
"nvd_published_at": "2017-10-20T15:29:00Z",
"severity": "HIGH"
},
"details": "The JMX server embedded in Apache James, also used by the command line client is exposed to a java de-serialization issue, and thus can be used to execute arbitrary commands. As James exposes JMX socket by default only on local-host, this vulnerability can only be used for privilege escalation. Release 3.0.1 upgrades the incriminated library.",
"id": "GHSA-xj7q-q94c-6wr3",
"modified": "2023-10-23T17:05:54Z",
"published": "2022-05-17T00:25:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12628"
},
{
"type": "PACKAGE",
"url": "https://github.com/apache/james-project"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20210124113233/http://www.securityfocus.com/bid/101532"
},
{
"type": "WEB",
"url": "https://www.mail-archive.com/server-user@james.apache.org/msg15633.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Apache James Privilege Escalation"
}
GHSA-XJ95-MHV8-MH4R
Vulnerability from github – Published: 2023-06-07 03:30 – Updated: 2024-04-04 04:37The Newsletter Manager plugin for WordPress is vulnerable to insecure deserialization in versions up to, and including, 1.5.1. This is due to unsanitized input from the 'customFieldsDetails' parameter being passed through a deserialization function. This potentially makes it possible for unauthenticated attackers to inject a serialized PHP object.
{
"affected": [],
"aliases": [
"CVE-2020-36727"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-07T02:15:12Z",
"severity": "CRITICAL"
},
"details": "The Newsletter Manager plugin for WordPress is vulnerable to insecure deserialization in versions up to, and including, 1.5.1. This is due to unsanitized input from the \u0027customFieldsDetails\u0027 parameter being passed through a deserialization function. This potentially makes it possible for unauthenticated attackers to inject a serialized PHP object.",
"id": "GHSA-xj95-mhv8-mh4r",
"modified": "2024-04-04T04:37:49Z",
"published": "2023-06-07T03:30:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36727"
},
{
"type": "WEB",
"url": "https://blog.nintechnet.com/insecure-deserialization-vulnerability-in-wordpress-newsletter-manager-plugin-unpatched"
},
{
"type": "WEB",
"url": "https://wpscan.com/vulnerability/b82124b1-e5e1-4f1e-9513-90474fd3f066"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/dcfd8c4d-d48b-468d-a7d5-1ec05b068f79?source=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-XJ9Q-5WM7-Q8WW
Vulnerability from github – Published: 2026-06-17 18:35 – Updated: 2026-06-17 18:35Contributor PHP Object Injection in Fusion Builder <= 3.15.4 versions.
{
"affected": [],
"aliases": [
"CVE-2026-54194"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-17T13:20:50Z",
"severity": "CRITICAL"
},
"details": "Contributor PHP Object Injection in Fusion Builder \u003c= 3.15.4 versions.",
"id": "GHSA-xj9q-5wm7-q8ww",
"modified": "2026-06-17T18:35:52Z",
"published": "2026-06-17T18:35:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54194"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/fusion-builder/vulnerability/wordpress-fusion-builder-plugin-3-15-4-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-XJQW-7VWM-PPM5
Vulnerability from github – Published: 2026-03-10 18:31 – Updated: 2026-06-24 18:32CWE-502: Deserialization of untrusted data vulnerability exists that could lead to loss of confidentiality, integrity and potential remote code execution on workstation when an admin authenticated user opens a malicious project file.
{
"affected": [],
"aliases": [
"CVE-2026-1286"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-10T18:18:04Z",
"severity": "HIGH"
},
"details": "CWE-502: Deserialization of untrusted data vulnerability exists that could lead to loss of confidentiality, integrity and potential remote code execution on workstation when an admin authenticated user opens a malicious project file.",
"id": "GHSA-xjqw-7vwm-ppm5",
"modified": "2026-06-24T18:32:25Z",
"published": "2026-03-10T18:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1286"
},
{
"type": "WEB",
"url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-069-03\u0026p_enDocType=Security+and+Safety+Notice\u0026p_File_Name=SEVD-2026-069-03.pdf"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/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-XM6V-3WMV-C56V
Vulnerability from github – Published: 2025-05-21 21:31 – Updated: 2025-05-21 21:31The Glossary by WPPedia – Best Glossary plugin for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.3.0 via deserialization of untrusted input from the 'posttypes' parameter. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
{
"affected": [],
"aliases": [
"CVE-2025-4803"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-21T12:16:23Z",
"severity": "HIGH"
},
"details": "The Glossary by WPPedia \u2013 Best Glossary plugin for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.3.0 via deserialization of untrusted input from the \u0027posttypes\u0027 parameter. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.",
"id": "GHSA-xm6v-3wmv-c56v",
"modified": "2025-05-21T21:31:38Z",
"published": "2025-05-21T21:31:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-4803"
},
{
"type": "WEB",
"url": "https://github.com/bfiessinger/wppedia/blob/1d0b8568349c9c9479372f845a812eb2aa4b3d09/core/classes/traits/trait-sanitizes-data.php#L64"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/wppedia/tags/1.3.0/core/classes/class-options.php#L396"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/wppedia/tags/1.3.0/core/classes/traits/trait-sanitizes-data.php#L64"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/53fb54bc-6eaa-4e99-a41c-e59a9bae81e5?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-XM9F-3PH3-V8P6
Vulnerability from github – Published: 2023-03-01 09:30 – Updated: 2023-03-10 03:30Unauthenticated Java deserialization vulnerability in Serviceguard Manager
{
"affected": [],
"aliases": [
"CVE-2022-37936"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-01T08:15:00Z",
"severity": "CRITICAL"
},
"details": "Unauthenticated Java deserialization vulnerability in Serviceguard Manager",
"id": "GHSA-xm9f-3ph3-v8p6",
"modified": "2023-03-10T03:30:15Z",
"published": "2023-03-01T09:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-37936"
},
{
"type": "WEB",
"url": "https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US\u0026docId=hpesbmu04452en_us"
}
],
"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-XP5Q-5Q7G-Q26R
Vulnerability from github – Published: 2026-05-12 18:30 – Updated: 2026-05-27 22:17The Ludwig framework thru 0.10.4 is vulnerable to insecure deserialization (CWE-502) in its model serving component. When starting a model server with the ludwig serve command, the framework loads model weight files using torch.load() without enabling the security-restrictive weights_only=True parameter. This default behavior allows the deserialization of arbitrary Python objects via the pickle module. An attacker can exploit this by providing a maliciously crafted PyTorch model file, leading to arbitrary code execution on the system hosting the Ludwig model server.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "ludwig"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.10.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-31238"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2026-05-27T22:17:15Z",
"nvd_published_at": "2026-05-12T18:16:52Z",
"severity": "CRITICAL"
},
"details": "The Ludwig framework thru 0.10.4 is vulnerable to insecure deserialization (CWE-502) in its model serving component. When starting a model server with the ludwig serve command, the framework loads model weight files using torch.load() without enabling the security-restrictive weights_only=True parameter. This default behavior allows the deserialization of arbitrary Python objects via the pickle module. An attacker can exploit this by providing a maliciously crafted PyTorch model file, leading to arbitrary code execution on the system hosting the Ludwig model server.",
"id": "GHSA-xp5q-5q7g-q26r",
"modified": "2026-05-27T22:17:15Z",
"published": "2026-05-12T18:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31238"
},
{
"type": "PACKAGE",
"url": "https://github.com/ludwig-ai/ludwig"
},
{
"type": "WEB",
"url": "https://www.notion.so/CVE-2026-31238-35d1e1393188819ea77ee98ca85a2878"
}
],
"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"
}
],
"summary": "Ludwig framework is vulnerable to insecure deserialization in its model serving component"
}
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.