CVE-2026-83591

High

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.

SeverityHigh
CVSS7.2
Exploit probability—
ProductAMP for WP – Accelerated Mobile Pages
PublishedSep 25, 2026
First seenSep 25, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
mohammed_kaludi AMP for WP – Accelerated Mobile Pagesv ≤ 1.1.16—

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CVE-2026-83591 · AMP for WP – Accelerated Mobile Pages · Dark Radar