Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2024-31211

Deserialization of Untrusted Data

Published: Apr 04, 2024 | Modified: Jan 02, 2026
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2024-31211
CWEhttps://cwe.mitre.org/data/definitions/502.html

WordPress is an open publishing platform for the Web. Unserialization of instances of the WP_HTML_Token class allows for code execution via its __destruct() magic method. This issue was fixed in WordPress 6.4.2 on December 6th, 2023. Versions prior to 6.4.0 are not affected.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Name Vendor Start Version End Version
Wordpress Wordpress 6.4.0 (including) 6.4.2 (excluding)
Wordpress Ubuntu focal *
Wordpress Ubuntu mantic *
Wordpress Ubuntu upstream *

Potential Mitigations

  • 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.

References

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