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.
Project Subscriptions
No data.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 23 Sep 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | JSM Show Post Metadata < 4.9.1 - Contributor+ Stored XSS via Custom Field Meta Key | |
| Weaknesses | CWE-79 | |
| References |
| |
| Metrics |
cvssV3_1
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: WPScan
Published:
Updated: 2026-09-23T10:53:26.953Z
Reserved: 2026-09-10T16:07:55.530Z
Link: CVE-2026-88997
Updated: 2026-09-23T10:34:12.771Z
Status : Received
Published: 2026-09-23T06:17:04.967
Modified: 2026-09-23T11:17:16.473
Link: CVE-2026-88997
No data.
OpenCVE Enrichment
No data.
Weaknesses