What is CVE-2026-85677?

CVE-2026-85677 is a high-severity vulnerability in Gutenverse News, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2026-09-11.

How severe is CVE-2026-85677?

High severity. CVSS v3 base score is 8.8 out of 10.

XSS in Gutenverse News

CVE-2026-85677

The Gutenverse News WordPress plugin before 3.3.3 does not restrict the extra HTML it adds to WordPress's allowed elements to the context it is meant for, applying the same relaxed list to every sanitisation context including untrusted comments, allowing unauthenticated users to store JavaScript that will execute in the browser of any administrator who reviews the comment queue, and of any visitor to the post once the comment is approved.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Unknown Gutenverse News

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-85677?: CVE-2026-85677 is a high-severity vulnerability in Gutenverse News, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2026-09-11.
How severe is CVE-2026-85677?: High severity. CVSS v3 base score is 8.8 out of 10.