What is CVE-2026-81155?

CVE-2026-81155 is a medium-severity vulnerability, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-10-11.

How severe is CVE-2026-81155?

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

CVE-2026-81155

CVE-2026-81155

The Robo Gallery WordPress plugin before 5.2.6 does not sanitise and escape a gallery setting before outputting it on a frontend page, allowing users with the Author role and above to perform Stored Cross-Site Scripting attacks that execute in the browser of any visitor viewing a gallery, including administrators.

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/e6b574c6-1999-4318-a9aa-9529aeceeb8b/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-81155?: CVE-2026-81155 is a medium-severity vulnerability, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-10-11.
How severe is CVE-2026-81155?: Medium severity. CVSS v3 base score is 6.8 out of 10.