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TI-2025-26165 Aliases CVE-2025-39423GHSA-33mx-vpmc-fg9c

WordPress Add to Header plugin <= 1.0 - CSRF to XSS vulnerability

Priority LOW 30CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Tampering
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-352.

Summary

Cross-Site Request Forgery (CSRF) vulnerability in Jenst Add to Header add-to-header allows Stored XSS.This issue affects Add to Header: from n/a through <= 1.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00152 4th 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
JenstAdd to Headerup to 1.0—No fix listedCNA
  • Add to Header VendorJenst Affected up to 1.0 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-2025-39423
  2. 2026-10-03 Alias added: GHSA-33mx-vpmc-fg9c

References

Other 1

  • TI-2023-12333 WordPress WP Page Numbers Plugin <= 0.5 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8
  • TI-2025-20159 WordPress WP Sitemap plugin <= 1.0 - SQL Injection vulnerability CVSS 3.1HIGH 8.5
  • TI-2025-16246 WordPress WP Simple Sitemap plugin <= 0.2 - CSRF to Stored XSS vulnerability CVSS 3.1HIGH 7.1
  • TI-2025-21849 WordPress Mobile Navigation plugin <= - 1.5 Cross Site Scripting (XSS) Vulnerability CVSS 3.1MEDIUM 5.9

Sources

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