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.
4914 vulnerabilities reference this CWE, most recent first.
GHSA-7W2X-66HX-WQ92
Vulnerability from github – Published: 2024-05-03 03:30 – Updated: 2024-05-03 03:30Inductive Automation Ignition JavaSerializationCodec Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Inductive Automation Ignition. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the JavaSerializationCodec class. 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 SYSTEM. Was ZDI-CAN-20291.
{
"affected": [],
"aliases": [
"CVE-2023-39476"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T03:15:13Z",
"severity": "CRITICAL"
},
"details": "Inductive Automation Ignition JavaSerializationCodec Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Inductive Automation Ignition. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the JavaSerializationCodec class. 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 SYSTEM. Was ZDI-CAN-20291.",
"id": "GHSA-7w2x-66hx-wq92",
"modified": "2024-05-03T03:30:56Z",
"published": "2024-05-03T03:30:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39476"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-23-1046"
}
],
"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-7W4P-72J7-V7C2
Vulnerability from github – Published: 2020-03-05 22:08 – Updated: 2021-08-19 19:57PHPMailer versions prior to 6.0.6 and 5.2.27 are vulnerable to an object injection attack by passing phar:// paths into addAttachment() and other functions that may receive unfiltered local paths, possibly leading to RCE. See this article for more info on this type of vulnerability. Mitigated by blocking the use of paths containing URL-protocol style prefixes such as phar://. Reported by Sehun Oh of cyberone.kr.
Impact
Object injection, possible remote code execution
Patches
Fixed in 6.0.6 and 5.2.27
Workarounds
Validate and sanitise user input before using.
References
https://nvd.nist.gov/vuln/detail/CVE-2018-19296
For more information
If you have any questions or comments about this advisory: * Open a private issue in the PHPMailer project
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "phpmailer/phpmailer"
},
"ranges": [
{
"events": [
{
"introduced": "5.0.0"
},
{
"fixed": "5.2.27"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "phpmailer/phpmailer"
},
"ranges": [
{
"events": [
{
"introduced": "6.0.0"
},
{
"fixed": "6.0.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2018-19296"
],
"database_specific": {
"cwe_ids": [
"CWE-1321",
"CWE-502",
"CWE-915"
],
"github_reviewed": true,
"github_reviewed_at": "2020-03-05T22:08:10Z",
"nvd_published_at": "2018-11-16T09:29:00Z",
"severity": "HIGH"
},
"details": "PHPMailer versions prior to 6.0.6 and 5.2.27 are vulnerable to an object injection attack by passing phar:// paths into `addAttachment()` and other functions that may receive unfiltered local paths, possibly leading to RCE. See [this article](https://knasmueller.net/5-answers-about-php-phar-exploitation) for more info on this type of vulnerability. Mitigated by blocking the use of paths containing URL-protocol style prefixes such as `phar://`. Reported by Sehun Oh of cyberone.kr.\n\n### Impact\nObject injection, possible remote code execution\n\n### Patches\nFixed in 6.0.6 and 5.2.27\n\n### Workarounds\nValidate and sanitise user input before using.\n\n### References\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-19296\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open a private issue in [the PHPMailer project](https://github.com/PHPMailer/PHPMailer)",
"id": "GHSA-7w4p-72j7-v7c2",
"modified": "2021-08-19T19:57:58Z",
"published": "2020-03-05T22:08:55Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/PHPMailer/PHPMailer/security/advisories/GHSA-7w4p-72j7-v7c2"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-19296"
},
{
"type": "WEB",
"url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/phpmailer/phpmailer/CVE-2018-19296.yaml"
},
{
"type": "WEB",
"url": "https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.27"
},
{
"type": "WEB",
"url": "https://github.com/PHPMailer/PHPMailer/releases/tag/v6.0.6"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4351"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Phar object injection in PHPMailer"
}
GHSA-7W62-GVGG-PVVQ
Vulnerability from github – Published: 2026-06-09 18:30 – Updated: 2026-06-09 18:30Deserialization of untrusted data in Nuance PowerScribe allows an unauthorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2026-26142"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T17:17:03Z",
"severity": "CRITICAL"
},
"details": "Deserialization of untrusted data in Nuance PowerScribe allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-7w62-gvgg-pvvq",
"modified": "2026-06-09T18:30:41Z",
"published": "2026-06-09T18:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26142"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26142"
}
],
"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-7W8V-27P6-FVCW
Vulnerability from github – Published: 2022-05-24 19:13 – Updated: 2022-05-24 19:13mrdoc is vulnerable to Deserialization of Untrusted Data
{
"affected": [],
"aliases": [
"CVE-2021-32568"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-06T12:15:00Z",
"severity": "HIGH"
},
"details": "mrdoc is vulnerable to Deserialization of Untrusted Data",
"id": "GHSA-7w8v-27p6-fvcw",
"modified": "2022-05-24T19:13:03Z",
"published": "2022-05-24T19:13:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-32568"
},
{
"type": "WEB",
"url": "https://github.com/zmister2016/mrdoc/commit/bb49e1287700b4e7681eab544c61093821ce72f6"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/04fc04b3-2dc1-4cad-a090-e403cd66b5ad"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-7WCP-Q9JJ-Q496
Vulnerability from github – Published: 2024-10-01 09:30 – Updated: 2024-10-01 09:30The Empowerment theme for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.0.2 via deserialization of untrusted input. 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-2024-7433"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-01T08:15:02Z",
"severity": "HIGH"
},
"details": "The Empowerment theme for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.0.2 via deserialization of untrusted input. 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-7wcp-q9jj-q496",
"modified": "2024-10-01T09:30:48Z",
"published": "2024-10-01T09:30:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7433"
},
{
"type": "WEB",
"url": "https://wordpress.org/themes/empowerment"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3d96d38a-7f0e-4e47-ba49-727705eaaac6?source=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-7WGV-V5P6-2F83
Vulnerability from github – Published: 2024-06-15 06:30 – Updated: 2024-06-15 06:30The WooCommerce - Social Login plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.6.2 via deserialization of untrusted input from the 'woo_slg_verify' vulnerable parameter. This makes it possible for unauthenticated attackers 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-2024-5871"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-15T04:15:13Z",
"severity": "CRITICAL"
},
"details": "The WooCommerce - Social Login plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.6.2 via deserialization of untrusted input from the \u0027woo_slg_verify\u0027 vulnerable parameter. This makes it possible for unauthenticated attackers 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-7wgv-v5p6-2f83",
"modified": "2024-06-15T06:30:25Z",
"published": "2024-06-15T06:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-5871"
},
{
"type": "WEB",
"url": "https://codecanyon.net/item/social-login-wordpress-woocommerce-plugin/8495883"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ffd592e6-2ac4-4af4-bfc0-d4f834157d71?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-7WHR-6G3C-2M6G
Vulnerability from github – Published: 2025-10-22 15:31 – Updated: 2026-01-20 15:31Deserialization of Untrusted Data vulnerability in wpshuffle Subscribe to Download subscribe-to-download allows Object Injection.This issue affects Subscribe to Download: from n/a through <= 2.0.9.
{
"affected": [],
"aliases": [
"CVE-2025-60224"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-22T15:15:59Z",
"severity": "MODERATE"
},
"details": "Deserialization of Untrusted Data vulnerability in wpshuffle Subscribe to Download subscribe-to-download allows Object Injection.This issue affects Subscribe to Download: from n/a through \u003c= 2.0.9.",
"id": "GHSA-7whr-6g3c-2m6g",
"modified": "2026-01-20T15:31:30Z",
"published": "2025-10-22T15:31:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-60224"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Plugin/subscribe-to-download/vulnerability/wordpress-subscribe-to-download-plugin-2-0-9-php-object-injection-vulnerability?_s_id=cve"
},
{
"type": "WEB",
"url": "https://vdp.patchstack.com/database/Wordpress/Plugin/subscribe-to-download/vulnerability/wordpress-subscribe-to-download-plugin-2-0-9-php-object-injection-vulnerability"
},
{
"type": "WEB",
"url": "https://vdp.patchstack.com/database/Wordpress/Plugin/subscribe-to-download/vulnerability/wordpress-subscribe-to-download-plugin-2-0-9-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:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-7WVQ-X6J3-GGCP
Vulnerability from github – Published: 2025-05-23 15:31 – Updated: 2026-04-01 18:35Deserialization of Untrusted Data vulnerability in AncoraThemes Kids Planet allows Object Injection. This issue affects Kids Planet: from n/a through 2.2.14.
{
"affected": [],
"aliases": [
"CVE-2025-48289"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-23T13:15:44Z",
"severity": "CRITICAL"
},
"details": "Deserialization of Untrusted Data vulnerability in AncoraThemes Kids Planet allows Object Injection. This issue affects Kids Planet: from n/a through 2.2.14.",
"id": "GHSA-7wvq-x6j3-ggcp",
"modified": "2026-04-01T18:35:16Z",
"published": "2025-05-23T15:31:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-48289"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/theme/kidsplanet/vulnerability/wordpress-kids-planet-2-2-14-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-7X3X-HPGM-XPW8
Vulnerability from github – Published: 2024-05-03 03:31 – Updated: 2024-05-03 03:31Inductive Automation Ignition RunQuery Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Inductive Automation Ignition. Authentication is required to exploit this vulnerability.
The specific flaw exists within the RunQuery class. 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 SYSTEM. Was ZDI-CAN-21625.
{
"affected": [],
"aliases": [
"CVE-2023-50219"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T03:16:09Z",
"severity": "HIGH"
},
"details": "Inductive Automation Ignition RunQuery Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Inductive Automation Ignition. Authentication is required to exploit this vulnerability.\n\nThe specific flaw exists within the RunQuery class. 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 SYSTEM. Was ZDI-CAN-21625.",
"id": "GHSA-7x3x-hpgm-xpw8",
"modified": "2024-05-03T03:31:06Z",
"published": "2024-05-03T03:31:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-50219"
},
{
"type": "WEB",
"url": "https://security.inductiveautomation.com/?tcuUid=fc4c4515-046d-4365-b688-693337449c5b"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-014"
}
],
"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"
}
]
}
GHSA-7X49-VPW9-2VMR
Vulnerability from github – Published: 2022-05-24 17:30 – Updated: 2026-07-09 18:31A Remote Code Execution vulnerability exists in PcVue from version 8.10 onward, due to the unsafe deserialization of messages received on the interface.
{
"affected": [],
"aliases": [
"CVE-2020-26867"
],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-10-12T14:15:00Z",
"severity": "CRITICAL"
},
"details": "A Remote Code Execution vulnerability exists in PcVue from version 8.10 onward, due to the unsafe deserialization of messages received on the interface.",
"id": "GHSA-7x49-vpw9-2vmr",
"modified": "2026-07-09T18:31:20Z",
"published": "2022-05-24T17:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26867"
},
{
"type": "WEB",
"url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2020/10/09/klcert-20-015-remote-code-execution-in-arc-informatique-pcvue"
},
{
"type": "WEB",
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03"
},
{
"type": "WEB",
"url": "https://www.pcvuesolutions.com/index.php/support-a-services/resources/security-alerts-95138"
},
{
"type": "WEB",
"url": "https://www.pcvuesolutions.com/security"
},
{
"type": "WEB",
"url": "https://www.pcvuesolutions.com/support/index.php/en/security-bulletin/1076-security-bulletin-2020-1"
}
],
"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.