Cross-site scripting in mahethekiller Header Footer Script Adder – Insert Code in Header…
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 Header Footer Script Adder – Insert Code in Header, Body & Footer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the script adder present in posts in all versions up to, and including, 2.0.5 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
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| mahethekiller | Header Footer Script Adder – Insert Code in Header, Body & Footer | up to 2.0.5 | — | No fix listed | CNA |
- Header Footer Script Adder – Insert Code in Header, Body & Footer Vendormahethekiller Affected up to 2.0.5 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-12109
- 2026-10-03 Alias added: GHSA-pjcx-grq4-2fm5
References
Other 2
More mahethekiller vulnerabilities
- TI-2026-12954 Header Footer Script Adder <= 2.1 - Authenticated (Author+) Stored Cross-Site Scripting via 'asm_code' Snippet Meta CVSS 3.1MEDIUM 6.4
Sources
- CVE-2025-12109 · CVE Program
- CVE-2025-12109 · NVD
- FIRST EPSS
- GHSA-pjcx-grq4-2fm5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences