CVE-2024-10957: 
WordPress vulnerability analysis and mitigation

The UpdraftPlus: WP Backup & Migration Plugin for WordPress contains a PHP Object Injection vulnerability (CVE-2024-10957) affecting versions 1.23.8 to 1.24.11. The vulnerability, discovered by security researcher Webbernaut, has been assigned a CVSS score of 8.8 (HIGH) and impacts over 3 million WordPress websites globally (Security Online, NVD).

The vulnerability exists in the 'recursive_unserialized_replace' function, which improperly handles the deserialization of untrusted input. While no known PHP Object POP (Property-Oriented Programming) chain exists in the plugin itself, the vulnerability could be exploited if another plugin or theme containing a POP chain is installed on the site. The vulnerability requires an administrator to perform a search and replace action to trigger the exploit (NVD).

If successfully exploited, the vulnerability could allow attackers to perform various malicious actions depending on the presence of a POP chain in other installed plugins or themes. Potential impacts include deletion of arbitrary files, retrieval of sensitive data, or execution of arbitrary code (Security Online).

The vulnerability can be exploited by unauthenticated attackers through the deserialization of untrusted input. However, exploitation requires both an administrator to perform a search and replace action and the presence of a POP chain through additional plugins or themes (NVD).

The vulnerability has been patched in version 1.24.12 of the UpdraftPlus plugin. All users are strongly recommended to update to this latest version immediately to mitigate the security risk (ASEC Advisory).