What is CVE-2026-81153?

CVE-2026-81153 is a medium-severity vulnerability, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-10-11.

How severe is CVE-2026-81153?

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

CVE-2026-81153

CVE-2026-81153

The Robo Gallery WordPress plugin before 5.2.6 does not sanitise and escape some of its image settings before outputting them in a gallery 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 the gallery, including administrators, even where the unfiltered_html capability is disallowed such as on multisite.

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/3bf12831-e386-4a69-857b-3dda05ee0bce/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-81153?: CVE-2026-81153 is a medium-severity vulnerability, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-10-11.
How severe is CVE-2026-81153?: Medium severity. CVSS v3 base score is 6.8 out of 10.