CVE-2026-83591

AMP for WP <= 1.1.16 - Unauthenticated Stored Cross-Site Scripting via Comment Content Regex Transformation

Published Sep 25, 2026 CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Description
The AMP for WP – Accelerated Mobile Pages plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content via Regex Transformation in all versions up to, and including, 1.1.16 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The crafted payload uses only WordPress-permitted comment tags and attributes (an anchor with href and title), and the AMP sanitizer pipeline omits javascript: protocol blocking, meaning neither the comment save filter nor the AMP output stage removes the malicious URI introduced by the transformation.

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
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Mohammed Kaludi
Mohammed Kaludi amp For Wp – Accelerated Mobile Pages
Wordpress
Wordpress wordpress
Vendors & Products Mohammed Kaludi
Mohammed Kaludi amp For Wp – Accelerated Mobile Pages
Wordpress
Wordpress wordpress
Type Values Removed Values Added
Description The AMP for WP – Accelerated Mobile Pages plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content via Regex Transformation in all versions up to, and including, 1.1.16 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The crafted payload uses only WordPress-permitted comment tags and attributes (an anchor with href and title), and the AMP sanitizer pipeline omits javascript: protocol blocking, meaning neither the comment save filter nor the AMP output stage removes the malicious URI introduced by the transformation.
Title AMP for WP <= 1.1.16 - Unauthenticated Stored Cross-Site Scripting via Comment Content Regex Transformation
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Sep 25, 2026, 1:00 PM
Reserved
Aug 31, 2026, 7:27 PM
Status
Deferred
Published
Sep 25, 2026, 7:16 AM
Modified
Sep 25, 2026, 2:17 PM