CVE-2026-88997EPSS p19.9%

CVE-2026-88997CVE-2026-88997

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.

Scoring

CVSS 6.8 ()
VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
EPSS0.29% probability of exploitation · percentile 19.9% · 2026-10-05T12:00:23Z
Last modified2026-09-23
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.