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CVE-2026-97019: AMP for WP stored cross-site scripting (XSS) vulnerability

high 7.2 published 2026-10-28 · updated 2026-10-29

Fixed in AMP for WP 1.1.18 (first release after the affected range)

AMP for WP 1.1.17 and older is affected by this stored XSS issue. Sites on 1.1.18 or newer are not affected; the latest release is 1.1.19.

Affected versions
1.1.17 and older
Fixed in
1.1.18 *
Latest version
1.1.19
Severity
High · CVSS 7.2
Active installs
70,000+
Type
Stored cross-site scripting (XSS)

* The source does not name a fixed version; this is the first wordpress.org release after the last affected version.

What an attacker needs

CVSS vector (score by Wordfence): CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

What to do now

  1. Update AMP for WP to 1.1.18 or newer (the latest is 1.1.19): Dashboard → Updates, or Plugins → “update now”.
  2. If you cannot update right away, deactivate it until you can.
  3. Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
  4. Not sure which version you run? Check your version against every known AMP for WP issue. With WP-CLI: wp plugin get accelerated-mobile-pages --field=version.
  5. If you ran an affected version and something looks off (new admin users, spam pages, redirects), run the free scan below.

The advisory

The AMP for WP – Accelerated Mobile Pages plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'headline-*' Shortcode Attribute in all versions up to, and including, 1.1.17 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. A Subscriber-level user can store a malicious shortcode in their biographical info field; because WordPress core's wp_filter_kses() only strips HTML tags and not shortcode syntax, and because AMP content sanitizers run before do_shortcode() processes the archive description, the synthesized markup is never post-sanitized.

Description from the CVE record, published by Wordfence (the CVE Numbering Authority), via the NVD entry for CVE-2026-97019.

References

Related

Ran an affected version? Check your site for signs of a hack

The free scan reads the public side of your site and looks for spam pages, hidden redirects, injected scripts and blacklist entries. No login, no install, about a minute.

Where this data comes from

First hour checklist

If the site was just hacked, read the emergency kit before you delete files. The page is free. Email is optional.

Read the emergency kit