CVE-2024-10957
Published: 04 January 2025
Description
The UpdraftPlus: WP Backup & Migration Plugin plugin for WordPress is vulnerable to PHP Object Injection in all versions from 1.23.8 to 1.24.11 via deserialization of untrusted input in the 'recursive_unserialized_replace' function. This makes it possible for unauthenticated attackers 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. An administrator must perform a search and replace action to trigger the exploit.
Security Summary
CVE-2024-10957 is a PHP Object Injection vulnerability (CWE-502) affecting the UpdraftPlus: WP Backup & Migration Plugin for WordPress in versions 1.23.8 through 1.24.11. The issue stems from deserialization of untrusted input within the 'recursive_unserialized_replace' function, enabling unauthenticated attackers to inject a PHP object. The vulnerability carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
Unauthenticated attackers can exploit this vulnerability only if an administrator performs a search and replace action, which triggers the deserialization process. The plugin itself contains no known Property-Oriented Programming (POP) chain, rendering it ineffective in isolation. However, if another plugin or theme on the target site provides a POP chain, exploitation could allow arbitrary file deletion, sensitive data retrieval, or code execution, depending on the capabilities of that chain.
Advisories point to mitigation via patching, as evidenced by the fix in changeset 3212299 at https://plugins.trac.wordpress.org/changeset/3212299/. The vulnerable code is located in class-search-replace.php at line 411 (https://plugins.trac.wordpress.org/browser/updraftplus/trunk/includes/class-search-replace.php#L411), and further details are available in the Wordfence threat intelligence report (https://www.wordfence.com/threat-intel/vulnerabilities/id/4729ed37-96b2-4717-8a72-89b9a21ec058?source=cve).
Details
- CWE(s)