CVE-2026-88997 JSM Show Post Metadata < 4.9.1 - Contributor+ Stored XSS via Custom Field Meta Key

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...

CVE-2026-88997 JSM Show Post Metadata < 4.9.1 - Contributor+ Stored XSS via Custom Field Meta Key

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...

CVE-2026-88997

The JSM Show Post Metadata WordPress plugin versions before 4.9.1 is vulnerable to a Stored Cross-Site Scripting (XSS) flaw. The root cause is the improper escaping of a post meta key before it is outputted into an inline event-handler attribute within an admin-facing meta box. This allows users ...

PT-2026-97189

Name of the Vulnerable Software and Affected Versions JSM Show Post Metadata WordPress plugin versions prior to 4.9.1 Description Insufficient escaping of a post meta key before it is output into an inline event-handler attribute within an admin-facing meta box allows users with contributor-level...