[ CVE-2026-88997 · Published 23 Sep 2026 ]
Vulnerability in Unknown JSM Show Post Metadata
CVSS 6.8
EPSS <1%No fix listed yet
[ Description ]Official description
The JSM Show Post Metadata WordPress plugin before 4.9.1 does not properly escape a post meta key before outputting it into an inline event-handler attribute in an admin-facing meta box, allowing users with contributor-level access and above to inject arbitrary JavaScript that executes in the session of a higher-privileged user who reviews the affected post.
[ 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.