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

CVE-2026-88997

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

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Unknown / JSM Show Post Metadata	affected 0 before 4.9.1

CWE

No CWE identifiers supplied.

References

https://wpscan.com/vulnerability/1699d3aa-29ca-4197-8e3b-0b03ecce751a/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.