CVE-2026-88997

MEDIUMCVSS 6.8

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.

Timeline

Published:September 23rd, 2026 6:17 AM

Last modified:September 23rd, 2026 6:12 PM

CVSS Scoring

CVSS v3: 6.8 (MEDIUM)

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

Weaknesses (CWE)

CWE-79

References & Reports

Advisories, patches, and third-party reports

https://wpscan.com/vulnerability/1699d3aa-29ca-4197-8e3b-0b03ecce751a/

Source: NIST NVD · Data may lag official sources by up to one minute