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-X7WV-26J6-PWGF
Vulnerability from github – Published: 2022-10-25 19:00 – Updated: 2022-10-26 12:00The Kadence WooCommerce Email Designer WordPress plugin before 1.5.7 unserialises the content of an imported file, which could lead to PHP object injections issues when an admin import (intentionally or not) a malicious file and a suitable gadget chain is present on the blog.
{
"affected": [],
"aliases": [
"CVE-2022-3335"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-25T17:15:00Z",
"severity": "HIGH"
},
"details": "The Kadence WooCommerce Email Designer WordPress plugin before 1.5.7 unserialises the content of an imported file, which could lead to PHP object injections issues when an admin import (intentionally or not) a malicious file and a suitable gadget chain is present on the blog.",
"id": "GHSA-x7wv-26j6-pwgf",
"modified": "2022-10-26T12:00:30Z",
"published": "2022-10-25T19:00:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3335"
},
{
"type": "WEB",
"url": "https://wpscan.com/vulnerability/39514705-c887-4a02-a77b-36e1dcca8f5d"
}
],
"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-X843-G5MX-G377
Vulnerability from github – Published: 2025-12-29 20:03 – Updated: 2025-12-29 20:03Summary
Picklescan uses operator.methodcaller, which is a built-in python library function to execute remote pickle files.
Details
The attack payload executes in the following steps:
- First, the attacker crafts the payload by calling the
operator.methodcallerfunction in methodreduce. - Then, when the victim checks whether the pickle file is safe using the Picklescan library and this library doesn't detect any dangerous functions, they decide to use pickle.load() on this malicious pickle file, thus leading to remote code execution.
PoC
import pickle
import pickletools
opcode1 = b'''cbuiltins
__import__
(Vos
tRp0
0coperator
methodcaller
(Vsystem
Vecho "pwned by operator.methodcaller"
tR(g0
tR.'''
pickletools.dis(opcode1)
pickle.loads(opcode1)
This PoC can't be easily created by pickle.dumps, therefore it was manually built.
Impact
Any organization or individual relying on picklescan to detect malicious pickle files inside PyTorch models. Attackers can embed malicious code in pickle file that remains undetected but executes when the pickle file is loaded. Attackers can distribute infected pickle files across ML models, APIs, or saved Python objects.
Report by
Pinji Chen (cpj24@mails.tsinghua.edu.cn) from the NISL lab (https://netsec.ccert.edu.cn/about) at Tsinghua University, Guanheng Liu (coolwind326@gmail.com).
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "picklescan"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.0.33"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-502",
"CWE-94"
],
"github_reviewed": true,
"github_reviewed_at": "2025-12-29T20:03:30Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "### Summary\nPicklescan uses `operator.methodcaller`, which is a built-in python library function to execute remote pickle files.\n\n### Details\nThe attack payload executes in the following steps:\n\n- First, the attacker crafts the payload by calling the `operator.methodcaller` function in method `reduce`.\n- Then, when the victim checks whether the pickle file is safe using the Picklescan library and this library doesn\u0027t detect any dangerous functions, they decide to use pickle.load() on this malicious pickle file, thus leading to remote code execution.\n\n### PoC\n```\nimport pickle\nimport pickletools\nopcode1 = b\u0027\u0027\u0027cbuiltins\n__import__\n(Vos\ntRp0\n0coperator\nmethodcaller\n(Vsystem\nVecho \"pwned by operator.methodcaller\"\ntR(g0\ntR.\u0027\u0027\u0027\npickletools.dis(opcode1)\npickle.loads(opcode1)\n```\nThis PoC can\u0027t be easily created by pickle.dumps, therefore it was manually built. \n\n### Impact\nAny organization or individual relying on picklescan to detect malicious pickle files inside PyTorch models.\nAttackers can embed malicious code in pickle file that remains undetected but executes when the pickle file is loaded.\nAttackers can distribute infected pickle files across ML models, APIs, or saved Python objects.\n\n### Report by\nPinji Chen (cpj24@mails.tsinghua.edu.cn) from the NISL lab (https://netsec.ccert.edu.cn/about) at Tsinghua University, Guanheng Liu (coolwind326@gmail.com).",
"id": "GHSA-x843-g5mx-g377",
"modified": "2025-12-29T20:03:30Z",
"published": "2025-12-29T20:03:30Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/mmaitre314/picklescan/security/advisories/GHSA-x843-g5mx-g377"
},
{
"type": "WEB",
"url": "https://github.com/mmaitre314/picklescan/pull/53"
},
{
"type": "WEB",
"url": "https://github.com/mmaitre314/picklescan/commit/70c1c6c31beb6baaf52c8db1b6c3c0e84a6f9dab"
},
{
"type": "PACKAGE",
"url": "https://github.com/mmaitre314/picklescan"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
"type": "CVSS_V4"
}
],
"summary": "Picklescan is vulnerable to RCE through missing detection when calling built-in python operator.methodcaller"
}
GHSA-X84H-H468-6JPC
Vulnerability from github – Published: 2026-05-12 18:30 – Updated: 2026-05-12 18:30Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2026-35439"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-12T18:17:14Z",
"severity": "HIGH"
},
"details": "Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.",
"id": "GHSA-x84h-h468-6jpc",
"modified": "2026-05-12T18:30:44Z",
"published": "2026-05-12T18:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35439"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35439"
}
],
"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-X863-P983-P4F7
Vulnerability from github – Published: 2026-06-09 06:31 – Updated: 2026-06-09 06:31In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to unauthorized actions via gadget class deserialization.
Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.
{
"affected": [],
"aliases": [
"CVE-2026-41855"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T05:16:37Z",
"severity": "HIGH"
},
"details": "In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to unauthorized actions via gadget class deserialization.\n\nAffected versions:\nSpring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.",
"id": "GHSA-x863-p983-p4f7",
"modified": "2026-06-09T06:31:58Z",
"published": "2026-06-09T06:31:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41855"
},
{
"type": "WEB",
"url": "https://spring.io/security/cve-2026-41855"
}
],
"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-X895-W6X2-X69H
Vulnerability from github – Published: 2022-05-14 03:42 – Updated: 2022-05-14 03:42A Remote Code Execution vulnerability in HPE Intelligent Management Center (iMC) PLAT version 7.3 E0504P2 was found.
{
"affected": [],
"aliases": [
"CVE-2017-5792"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-02-15T22:29:00Z",
"severity": "CRITICAL"
},
"details": "A Remote Code Execution vulnerability in HPE Intelligent Management Center (iMC) PLAT version 7.3 E0504P2 was found.",
"id": "GHSA-x895-w6x2-x69h",
"modified": "2022-05-14T03:42:45Z",
"published": "2022-05-14T03:42:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-5792"
},
{
"type": "WEB",
"url": "https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbhf03713en_us"
},
{
"type": "WEB",
"url": "https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-hpesbhf03815en_us"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/43927"
},
{
"type": "WEB",
"url": "https://www.tenable.com/security/research/tra-2017-18"
},
{
"type": "WEB",
"url": "https://www.tenable.com/security/research/tra-2018-01"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/96769"
}
],
"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-X8QG-RM2Q-WP88
Vulnerability from github – Published: 2025-03-07 09:30 – Updated: 2025-03-07 09:30The Gallery by BestWebSoft – Customizable Image and Photo Galleries for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 4.7.3 via deserialization of untrusted input in the 'import_gallery_from_csv' function. 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-2024-13906"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-07T08:15:37Z",
"severity": "HIGH"
},
"details": "The Gallery by BestWebSoft \u2013 Customizable Image and Photo Galleries for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 4.7.3 via deserialization of untrusted input in the \u0027import_gallery_from_csv\u0027 function. 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-x8qg-rm2q-wp88",
"modified": "2025-03-07T09:30:34Z",
"published": "2025-03-07T09:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-13906"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/gallery-plugin/tags/4.7.3/gallery-plugin.php#L292"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/3249573"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/76c5559d-f9dd-43cf-8c8e-07188b4edf7f?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-X8R9-8P38-G877
Vulnerability from github – Published: 2025-07-16 12:30 – Updated: 2026-04-01 18:35Deserialization of Untrusted Data vulnerability in NooTheme Yogi allows Object Injection. This issue affects Yogi: from n/a through 2.9.0.
{
"affected": [],
"aliases": [
"CVE-2025-24779"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-16T12:15:23Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in NooTheme Yogi allows Object Injection. This issue affects Yogi: from n/a through 2.9.0.",
"id": "GHSA-x8r9-8p38-g877",
"modified": "2026-04-01T18:35:47Z",
"published": "2025-07-16T12:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-24779"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/theme/yogi/vulnerability/wordpress-yogi-2-9-0-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-X8V8-8HJ9-W975
Vulnerability from github – Published: 2024-01-08 21:30 – Updated: 2026-04-28 21:33Deserialization of Untrusted Data vulnerability in Live Composer Team Page Builder: Live Composer live-composer-page-builder.This issue affects Page Builder: Live Composer: from n/a through 1.5.25.
{
"affected": [],
"aliases": [
"CVE-2023-52206"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-08T20:15:45Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in Live Composer Team Page Builder: Live Composer live-composer-page-builder.This issue affects Page Builder: Live Composer: from n/a through 1.5.25.",
"id": "GHSA-x8v8-8hj9-w975",
"modified": "2026-04-28T21:33:46Z",
"published": "2024-01-08T21:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52206"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/vulnerability/live-composer-page-builder/wordpress-page-builder-live-composer-plugin-1-5-25-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:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-X8X7-CJX6-RVV2
Vulnerability from github – Published: 2025-10-22 15:31 – Updated: 2026-01-20 15:31Deserialization of Untrusted Data vulnerability in designthemes Knowledge Base kbase allows Object Injection.This issue affects Knowledge Base: from n/a through <= 2.9.
{
"affected": [],
"aliases": [
"CVE-2025-60228"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-22T15:16:00Z",
"severity": "HIGH"
},
"details": "Deserialization of Untrusted Data vulnerability in designthemes Knowledge Base kbase allows Object Injection.This issue affects Knowledge Base: from n/a through \u003c= 2.9.",
"id": "GHSA-x8x7-cjx6-rvv2",
"modified": "2026-01-20T15:31:31Z",
"published": "2025-10-22T15:31:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-60228"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Theme/kbase/vulnerability/wordpress-knowledge-base-theme-2-9-php-object-injection-vulnerability?_s_id=cve"
},
{
"type": "WEB",
"url": "https://vdp.patchstack.com/database/Wordpress/Theme/kbase/vulnerability/wordpress-knowledge-base-theme-2-9-php-object-injection-vulnerability"
},
{
"type": "WEB",
"url": "https://vdp.patchstack.com/database/Wordpress/Theme/kbase/vulnerability/wordpress-knowledge-base-theme-2-9-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-X9P9-9R24-PQG9
Vulnerability from github – Published: 2023-07-13 12:30 – Updated: 2024-04-04 06:07Controller DoS may occur due to buffer overflow when an error is generated in response to a specially crafted message.
{
"affected": [],
"aliases": [
"CVE-2023-25770"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-07-13T11:15:09Z",
"severity": "HIGH"
},
"details": "Controller DoS may occur due to buffer overflow when an error is generated in response to a specially crafted message.",
"id": "GHSA-x9p9-9r24-pqg9",
"modified": "2024-04-04T06:07:06Z",
"published": "2023-07-13T12:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-25770"
},
{
"type": "WEB",
"url": "https://process.honeywell.com"
}
],
"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"
}
]
}
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.