CVE-2026-88997

MediumCVSS 6.8/10Last modified Sep 23, 2026

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.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-79

Affected software

No affected versions have been published.

Timeline

Published
Sep 23, 2026
Last modified
Sep 23, 2026
NVD status
Deferred

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CVE-2026-88997: Medium severity, CVSS 6.8 | Vulnix