CVE-2026-15394 json
Header Footer Script Adder <= 2.1 - Authenticated (Author+) Stored Cross-Site Scripting via 'asm_code' Snippet Meta
published 2026-07-23 3 mo ago modified 2026-07-23 3 mo ago also EUVD-2026-47906
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 26%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- mahethekiller Header Footer Script Adder
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/c394c9bc-21f6-45ea-8eda-8ee22a9b87ba?source=cve
- plugins.trac.wordpress.org /browser/header-and-footer-script-adder/tags/2.1/pro/class-pro-admin.php#L400
- plugins.trac.wordpress.org /browser/header-and-footer-script-adder/tags/2.1/pro/class-pro-public.php#L145
- plugins.trac.wordpress.org /browser/header-and-footer-script-adder/tags/2.1/pro/class-pro-public.php#L253
- plugins.trac.wordpress.org /changeset?reponame=&old=3611085%40header-and-footer-script-adder&new=3611085%40header-and-footer-script-adder
Sources
- CVE List CVE-2026-15394
- NVD CVE-2026-15394
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.