Vulnerability Description
The Header Footer Script Adder – Insert Code in Header, Body & Footer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'asm_code' Snippet Meta in all versions up to, and including, 2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/header-and-footer-script-adder/tags/2
- https://plugins.trac.wordpress.org/browser/header-and-footer-script-adder/tags/2
- https://plugins.trac.wordpress.org/browser/header-and-footer-script-adder/tags/2
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3611085%40header-and-
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c394c9bc-21f6-45ea-8ed
FAQ
What is CVE-2026-15394?
CVE-2026-15394 is a vulnerability with a CVSS score of 6.4 (MEDIUM). The Header Footer Script Adder – Insert Code in Header, Body & Footer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'asm_code' Snippet Meta in all versions up to, and including...
How severe is CVE-2026-15394?
CVE-2026-15394 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-15394?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.