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CVE-2026-83591— AMP for WP <= 1.1.16 - Unauthenticated Stored Cross-Site Scripting via Comment Content Regex Transformation

Quick assessment

Affected
mohammed_kaludi AMP for WP – Accelerated Mobile Pages
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 的 AMP for WP – Accelerated Mobile Pages 插件在所有 1.1.16 及更早版本中存在存储型跨站脚本漏洞（Stored Cross-Site Scripting）。该漏洞源于评论内容在处理过程中经过正则表达式变换时，缺乏足够的输入清理和输出转义。攻击者无需认证即可在页面中注入任意 Web 脚本，当其他用户访问被注入的页面时，这些脚本就会执行。 构造的攻击载荷仅使用了 WordPress 允许的评论标签和属性（即带有 href 和 title 属性的 <a> 锚

CVSS 7.2 · High EPSS 0.25% · P15

Affected Version Matrix 1

VendorProduct Version RangeStatus
mohammed_kaludi AMP for WP – Accelerated Mobile Pages ≤ 1.1.16 affected
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I. Basic Information for CVE-2026-83591

Vulnerability Information
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Vulnerability Title
AMP for WP <= 1.1.16 - Unauthenticated Stored Cross-Site Scripting via Comment Content Regex Transformation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
mohammed_kaludi AMP for WP – Accelerated Mobile Pages 0 ~ 1.1.16 -

II. Public POCs for CVE-2026-83591

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III. Intelligence Information for CVE-2026-83591

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Patches & Fixes for CVE-2026-83591 (2)

Vendor Advisories for CVE-2026-83591 (1)

Other References for CVE-2026-83591 (2)

IV. Related Vulnerabilities

Same product: AMP for WP – Accelerated Mobile Pages
Same vendor: mohammed_kaludi
Same weakness: CWE-79

V. Comments for CVE-2026-83591

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