What is CVE-2026-81156?

CVE-2026-81156 is a medium-severity vulnerability, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-10-11.

How severe is CVE-2026-81156?

Medium severity. CVSS v3 base score is 6.8 out of 10.

CVE-2026-81156

CVE-2026-81156

The Robo Gallery WordPress plugin before 5.2.6 does not sanitise and escape some of its gallery settings before outputting them on the gallery edit screen, allowing users with the Contributor role and above to store JavaScript that executes in the context of an administrator who opens the gallery for editing.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-11 · last modified 2026-10-11.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

wpscan.com/vulnerability/e8c9aabb-a889-473b-b107-3aafb71a6956/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-81156?: CVE-2026-81156 is a medium-severity vulnerability, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-10-11.
How severe is CVE-2026-81156?: Medium severity. CVSS v3 base score is 6.8 out of 10.