medium6.8
CVE-2026-88997
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 i…
Impact
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 products
| Product | Affected versions |
|---|---|
| JSM Show Post Metadata WordPress Plugin | before 4.9.1 |
Versions were read from the advisory text. No structured product data has been published for this record yet.