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 …
Published: 2026-09-23 · CVSS: 6.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7