CVE-2026-85677

Gutenverse News < 3.3.3 - Unauthenticated Stored XSS via Comment Content

Published Sep 11, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions gutenverse News
Vendors & Products Wordpress-extensions
Wordpress-extensions gutenverse News
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-79
Type Values Removed Values Added
Description 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.
Title Gutenverse News < 3.3.3 - Unauthenticated Stored XSS via Comment Content
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Sep 11, 2026, 10:09 AM
Reserved
Sep 4, 2026, 1:34 PM
Status
Deferred
Published
Sep 11, 2026, 7:16 AM
Modified
Sep 11, 2026, 5:35 PM