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TI-2026-81640 Aliases CVE-2026-97019GHSA-cffj-cwcj-4vv7

Stored cross-site scripting in AMP for WP via shortcode attribute

Priority LOW 31CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

All versions of the AMP for WP plugin up to and including 1.1.17 are affected by stored cross-site scripting via the headline-* shortcode attribute (CWE-79). An unauthenticated attacker can inject scripts into pages that run when a user opens an affected page. A Subscriber can store a malicious shortcode in their biographical info field, since sanitizers run before shortcodes are processed.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00236 14th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
mohammed_kaludiAMP for WP – Accelerated Mobile Pagesup to 1.1.17—No fix listedCNA
  • AMP for WP – Accelerated Mobile Pages Vendormohammed_kaludi Affected up to 1.1.17 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for AMP for WP (Accelerated Mobile Pages).

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-97019
  2. 2026-10-28 Alias added: GHSA-cffj-cwcj-4vv7
  3. 2026-10-28 Priority changed: MEDIUM → LOW
  4. 2026-10-29 CISA SSVC decision points changed

References

Other 5

  • TI-2024-08905 AMP for WP – Accelerated Mobile Pages <= 1.0.99.1 - Cross-Site Request Forgery to Privilege Escalation CVSS 3.1HIGH 8.8
  • TI-2026-57693 AMP for WP <= 1.1.16 - Unauthenticated Stored Cross-Site Scripting via Comment Content Regex Transformation CVSS 3.1HIGH 7.2
  • TI-2026-05345 AMP for WP <= 1.1.12 - Authenticated (Author+) Arbitrary File Write via Role-Based Access… CVSS 3.1HIGH 7.5
  • TI-2026-63639 WordPress Core Web Vitals & PageSpeed Booster plugin <= 1.0.31 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
  • TI-2024-00965 AMP for WP <= 1.0.93.1 - Authenticated(Contributor+) Arbitrary Post Deletion via amppb_remove_saved_layout_data CVSS 3.1MEDIUM 6.5
  • TI-2023-06197 AMP for WP – Accelerated Mobile Pages <= 1.0.92 - Authenticated (Contributor+) Cross-Site Scripting via Shortcode CVSS 3.1MEDIUM 6.4
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences