Medium severity6.8NVD Advisory· Published Sep 23, 2026· Updated Sep 23, 2026
CVE-2026-88997
CVE-2026-88997
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <4.9.1
Patches
Vulnerability mechanics
References
1News mentions
1- Wordfence Intelligence Weekly WordPress Vulnerability Report (September 21, 2026 to September 27, 2026)Wordfence Blog · Oct 1, 2026