[ CVE-2026-107508 · Published 14 Oct 2026 ]
Vulnerability in Unknown Ultimate Multisite
CVSS 8.6
EPSS <1%No fix listed yet
[ Description ]Official description
The Ultimate Multisite WordPress plugin before 2.17.2 does not validate a user-supplied value used to select a file to include, allowing unauthenticated attackers to include and read arbitrary local files, including the WordPress configuration file.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.