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TI-2026-02197 Aliases CVE-2026-2573GHSA-5hjr-3m2v-64xv

GutenKit <= 2.4.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'postBodyCss'

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
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

The GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘postBodyCss’ parameter in all versions up to, and including, 2.4.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00261 17th 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
ataurrGutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editorup to 2.4.4—No fix listedCNA
  • GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor Vendorataurr Affected up to 2.4.4 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-2573
  2. 2026-10-03 Alias added: GHSA-5hjr-3m2v-64xv

References

Other 2

  • TI-2024-08570 GutenKit <= 2.1.0 - Unauthenticated Arbitrary File Upload CVSS 3.1CRITICAL 9.8
  • TI-2026-13309 Missing authorization in ataurr GutenKit – Page Builder Blocks, Patterns, and Templates… CVSS 3.1MEDIUM 5.3
  • TI-2025-35754 WordPress GutenKit Plugin <= 2.4.2 - Cross Site Scripting (XSS) Vulnerability CVSS 3.1MEDIUM 6.5

Sources

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