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CVE-2026-88997

MEDIUM 6.8 CVSS 3.1
Published
September 23, 2026
Last modified
September 23, 2026
NVD status
Deferred
Reported by
contact@wpscan.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Unknown JSM Show Post Metadata — Before 4.9.1

References

  • wpscan.com https://wpscan.com/vulnerability/1699d3aa-29ca-4197-8e3b-0b03ecce751a/
  • nvd.nist.gov Official NVD record