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.
5669 vulnerabilities reference this CWE, most recent first.
GHSA-7HJ6-V8WX-JQJX
Vulnerability from github – Published: 2026-04-15 18:31 – Updated: 2026-04-15 18:31Deserialization of untrusted data vulnerability in OpenText, Inc RightFax on Windows, 64 bit, 32 bit allows Object Injection.This issue affects RightFax: through 25.4.
{
"affected": [],
"aliases": [
"CVE-2025-15610"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-15T17:17:00Z",
"severity": "CRITICAL"
},
"details": "Deserialization of untrusted data vulnerability in OpenText, Inc RightFax on Windows, 64 bit, 32 bit allows Object Injection.This issue affects RightFax: through 25.4.",
"id": "GHSA-7hj6-v8wx-jqjx",
"modified": "2026-04-15T18:31:57Z",
"published": "2026-04-15T18:31:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-15610"
},
{
"type": "WEB",
"url": "https://support.opentext.com/csm?id=ot_kb_unauthenticated\u0026sysparm_article=KB0861863"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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-7HMV-6P8V-7RMW
Vulnerability from github – Published: 2022-05-14 02:37 – Updated: 2022-05-14 02:37gui2/viewer/bookmarkmanager.py in Calibre 3.18 calls cPickle.load on imported bookmark data, which allows remote attackers to execute arbitrary code via a crafted .pickle file, as demonstrated by Python code that contains an os.system call.
{
"affected": [],
"aliases": [
"CVE-2018-7889"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-03-08T21:29:00Z",
"severity": "HIGH"
},
"details": "gui2/viewer/bookmarkmanager.py in Calibre 3.18 calls cPickle.load on imported bookmark data, which allows remote attackers to execute arbitrary code via a crafted .pickle file, as demonstrated by Python code that contains an os.system call.",
"id": "GHSA-7hmv-6p8v-7rmw",
"modified": "2022-05-14T02:37:09Z",
"published": "2022-05-14T02:37:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-7889"
},
{
"type": "WEB",
"url": "https://github.com/kovidgoyal/calibre/commit/aeb5b036a0bf657951756688b3c72bd68b6e4a7d"
},
{
"type": "WEB",
"url": "https://bugs.launchpad.net/calibre/+bug/1753870"
}
],
"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-7HQF-CJ89-Q6QR
Vulnerability from github – Published: 2026-06-17 18:35 – Updated: 2026-06-17 18:35Unauthenticated PHP Object Injection in SingleMalt <= 1.5 versions.
{
"affected": [],
"aliases": [
"CVE-2026-39576"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-17T14:17:51Z",
"severity": "HIGH"
},
"details": "Unauthenticated PHP Object Injection in SingleMalt \u003c= 1.5 versions.",
"id": "GHSA-7hqf-cj89-q6qr",
"modified": "2026-06-17T18:35:54Z",
"published": "2026-06-17T18:35:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39576"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/theme/singlemalt/vulnerability/wordpress-singlemalt-theme-1-5-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-7HQR-J26M-GMWP
Vulnerability from github – Published: 2022-05-13 01:27 – Updated: 2024-04-24 17:23An issue was discovered in Pimcore before 5.7.1. An attacker with classes permission can send a POST request to /admin/class/bulk-commit, which will make it possible to exploit the unserialize function when passing untrusted values in the data parameter to bundles/AdminBundle/Controller/Admin/DataObject/ClassController.php.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "pimcore/pimcore"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.7.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2019-10867"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2024-04-24T17:23:05Z",
"nvd_published_at": "2019-04-04T18:29:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in Pimcore before 5.7.1. An attacker with classes permission can send a POST request to `/admin/class/bulk-commit`, which will make it possible to exploit the unserialize function when passing untrusted values in the data parameter to `bundles/AdminBundle/Controller/Admin/DataObject/ClassController.php`.",
"id": "GHSA-7hqr-j26m-gmwp",
"modified": "2024-04-24T17:23:05Z",
"published": "2022-05-13T01:27:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10867"
},
{
"type": "WEB",
"url": "https://github.com/pimcore/pimcore/commit/38a29e2f4f5f060a73974626952501cee05fda73"
},
{
"type": "WEB",
"url": "https://blog.certimetergroup.com/it/articolo/security/polyglot_phar_deserialization_to_rce"
},
{
"type": "PACKAGE",
"url": "https://github.com/pimcore/pimcore"
},
{
"type": "WEB",
"url": "https://snyk.io/vuln/SNYK-PHP-PIMCOREPIMCORE-173998"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/46783"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/152667/Pimcore-Unserialize-Remote-Code-Execution.html"
},
{
"type": "WEB",
"url": "http://www.rapid7.com/db/modules/exploit/multi/http/pimcore_unserialize_rce"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Pimcore Unserialize Remote Code Execution"
}
GHSA-7HR6-WJJ3-8FVF
Vulnerability from github – Published: 2026-10-10 21:31 – Updated: 2026-10-10 21:31Unauthenticated PHP Object Injection in Original <= 1.9.0 versions.
{
"affected": [],
"aliases": [
"CVE-2026-66568"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-10T20:16:46Z",
"severity": "CRITICAL"
},
"details": "Unauthenticated PHP Object Injection in Original \u003c= 1.9.0 versions.",
"id": "GHSA-7hr6-wjj3-8fvf",
"modified": "2026-10-10T21:31:20Z",
"published": "2026-10-10T21:31:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66568"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/theme/original/vulnerability/wordpress-original-theme-1-9-0-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-7J7C-35QG-3347
Vulnerability from github – Published: 2026-03-07 03:30 – Updated: 2026-03-07 03:30The JS Archive List plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 6.1.7 via the 'included' shortcode attribute. This is due to the deserialization of untrusted input supplied via the 'included' parameter of the plugin's shortcode. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
{
"affected": [],
"aliases": [
"CVE-2026-2020"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-07T02:16:12Z",
"severity": "HIGH"
},
"details": "The JS Archive List plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 6.1.7 via the \u0027included\u0027 shortcode attribute. This is due to the deserialization of untrusted input supplied via the \u0027included\u0027 parameter of the plugin\u0027s shortcode. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.",
"id": "GHSA-7j7c-35qg-3347",
"modified": "2026-03-07T03:30:27Z",
"published": "2026-03-07T03:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2020"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/tags/6.1.7/classes/class-jq-archive-list-widget.php#L674"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/tags/6.1.7/classes/class-js-archive-list-settings.php#L10"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/trunk/classes/class-jq-archive-list-widget.php#L674"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/jquery-archive-list-widget/trunk/classes/class-js-archive-list-settings.php#L10"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3466978%40jquery-archive-list-widget\u0026new=3466978%40jquery-archive-list-widget\u0026sfp_email=\u0026sfph_mail="
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9b0f6653-471b-4cee-9c92-f24dbe2c2dbd?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-7J9M-J397-G4WX
Vulnerability from github – Published: 2023-02-21 21:30 – Updated: 2023-03-03 22:58Under very specific circumstances, a privileged user is able to cause arbitrary code to be executed which may cause further disruption to services. This is specific to applications written in C#. This affects all MongoDB .NET/C# Driver versions prior to and including v2.18.0
{
"affected": [
{
"package": {
"ecosystem": "NuGet",
"name": "MongoDB.Driver"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.19.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-48282"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2023-03-03T22:58:41Z",
"nvd_published_at": "2023-02-21T19:15:00Z",
"severity": "HIGH"
},
"details": "Under very specific circumstances, a privileged user is able to cause arbitrary code to be executed which may cause further disruption to services. This is specific to applications written in C#. This affects all MongoDB .NET/C# Driver versions prior to and including v2.18.0",
"id": "GHSA-7j9m-j397-g4wx",
"modified": "2023-03-03T22:58:41Z",
"published": "2023-02-21T21:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48282"
},
{
"type": "PACKAGE",
"url": "https://github.com/mongodb/mongo-csharp-driver"
},
{
"type": "WEB",
"url": "https://github.com/mongodb/mongo-csharp-driver/releases/tag/v2.19.0"
},
{
"type": "WEB",
"url": "https://jira.mongodb.org/CSHARP-4475"
},
{
"type": "WEB",
"url": "https://jira.mongodb.org/browse/CSHARP-4475"
}
],
"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"
}
],
"summary": "MongoDB .NET/C# Driver vulnerable to Deserialization of Untrusted Data"
}
GHSA-7JFM-PX59-99W8
Vulnerability from github – Published: 2022-05-17 05:23 – Updated: 2023-08-29 23:30The Extbase Framework in TYPO3 4.6.x through 4.6.6, 4.7, and 6.0 unserializes untrusted data, which allows remote attackers to unserialize arbitrary objects and possibly execute arbitrary code via vectors related to "a missing signature (HMAC) for a request argument."
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 4.6.6"
},
"package": {
"ecosystem": "Packagist",
"name": "typo3/cms"
},
"ranges": [
{
"events": [
{
"introduced": "4.6"
},
{
"fixed": "4.6.7"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "typo3/cms"
},
"ranges": [
{
"events": [
{
"introduced": "4.4.0"
},
{
"fixed": "4.4.14"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "typo3/cms"
},
"ranges": [
{
"events": [
{
"introduced": "4.5.0"
},
{
"fixed": "4.5.14"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2012-1605"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2023-08-29T23:30:37Z",
"nvd_published_at": "2012-09-04T20:55:00Z",
"severity": "MODERATE"
},
"details": "The Extbase Framework in TYPO3 4.6.x through 4.6.6, 4.7, and 6.0 unserializes untrusted data, which allows remote attackers to unserialize arbitrary objects and possibly execute arbitrary code via vectors related to \"a missing signature (HMAC) for a request argument.\"",
"id": "GHSA-7jfm-px59-99w8",
"modified": "2023-08-29T23:30:37Z",
"published": "2022-05-17T05:23:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2012-1605"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20120527123559/http://www.securityfocus.com/bid/52771"
},
{
"type": "WEB",
"url": "http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2012-001"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2012/03/30/4"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "Typo3 Extbase Framework Unsafe Deserialization"
}
GHSA-7JHG-723H-FJHX
Vulnerability from github – Published: 2026-08-28 12:30 – Updated: 2026-08-28 12:30SvelteKit versions from 2.49.0 through 2.53.2 (fixed in 2.53.3) contain a deserialization expansion issue in the experimental form remote function. When an application enables experimental.remoteFunctions and uses the form function to process the files array without validating files.length or individual file sizes, an attacker can submit relatively small inputs that expand into very large file arrays, leading to expensive processing and denial of service.
{
"affected": [],
"aliases": [
"CVE-2026-82259"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-28T12:16:38Z",
"severity": "HIGH"
},
"details": "SvelteKit versions from 2.49.0 through 2.53.2 (fixed in 2.53.3) contain a deserialization expansion issue in the experimental form remote function. When an application enables experimental.remoteFunctions and uses the form function to process the files array without validating files.length or individual file sizes, an attacker can submit relatively small inputs that expand into very large file arrays, leading to expensive processing and denial of service.",
"id": "GHSA-7jhg-723h-fjhx",
"modified": "2026-08-28T12:30:29Z",
"published": "2026-08-28T12:30:29Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/sveltejs/kit/security/advisories/GHSA-fpg4-jhqr-589c"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82259"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/sveltekit-2.49.0-before-2.53.3-denial-of-service-via-form"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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-7JM9-9V8C-M25J
Vulnerability from github – Published: 2022-05-14 03:41 – Updated: 2022-05-14 03:41NASA Singledop version v1.0 contains a CWE-502 vulnerability in NASA Singledop library (Weather data) that can result in remote code execution. This attack appear to be exploitable via Victim opening a specially crafted radar data file. This vulnerability appears to have been fixed in v1.1.
{
"affected": [],
"aliases": [
"CVE-2018-1000045"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-02-09T23:29:00Z",
"severity": "HIGH"
},
"details": "NASA Singledop version v1.0 contains a CWE-502 vulnerability in NASA Singledop library (Weather data) that can result in remote code execution. This attack appear to be exploitable via Victim opening a specially crafted radar data file. This vulnerability appears to have been fixed in v1.1.",
"id": "GHSA-7jm9-9v8c-m25j",
"modified": "2022-05-14T03:41:03Z",
"published": "2022-05-14T03:41:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1000045"
},
{
"type": "WEB",
"url": "https://github.com/nasa/SingleDop/pull/19"
}
],
"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"
}
]
}
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.