CVE-2026-75891

CVSS 8.8 (high) · published 2026-10-27

The Kirki plugin for WordPress is vulnerable to Privilege Escalation via PHP Object Injection in all versions up to, and including, 6.2.5 via deserialization of untrusted input through the 'get-single-symbol' branch of the kirki_post_apis() AJAX dispatcher due to a missing capability check. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject a PHP Object. The additional presence of a POP chain allows attackers to overwrite an administrator's password and gain administrative access.

Weakness: CWE-502

Source: NVD CVE-2026-75891

References

• https://plugins.trac.wordpress.org/changeset/3677965/kirki
• https://www.wordfence.com/threat-intel/vulnerabilities/id/aecfea73-97fc-48c3-bf1b-5314077739b5?source=cve

Check your software

Connect an AI agent to the FixLane MCP server or ask the Telegram bot to check what you have installed against incidents with a verified fixed version.