CVE-2024-13900: The Head, Footer and Post Injections plugin for WordPress is vulnerable to PHP Code Injection in all versions

Q: How do I fix CVE-2024-13900?

head\, footer\, and post injections: upgrade to 3.3.1. Exact commands for each OS are on this page.

Q: Is CVE-2024-13900 being exploited?

CVE-2024-13900 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-13900 affect?

CVE-2024-13900 affects head\, footer\, and post injections. Severity is medium (CVSS 4.1). 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 inj

Q: How urgent is CVE-2024-13900?

Priority 23/100. No elevated risk signals yet.

Routine

MEDIUM 4.1UPGRADE

CVE-2024-13900 is a medium-severity flaw (CVSS 4.1) affecting head\, footer\, and post injections. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.1 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	High
User interaction	None
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-94
Published	2025-02-21
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: satollo

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-02-21 12:15 UTCPublished CVE record published
2026-06-17 07:02 UTCUpdated Record last modified

satollo head\, footer\, and post injections UPGRADE

Affected: < 3.3.1

Fixed in: 3.3.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy head-footer-and-post-injections || rpm -q head-footer-and-post-injections || head-footer-and-post-injections --version

2. UPGRADE to 3.3.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade head-footer-and-post-injections

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade head-footer-and-post-injections

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-13900?

head\, footer\, and post injections: upgrade to 3.3.1. Exact commands for each OS are on this page.

Is CVE-2024-13900 being exploited?

CVE-2024-13900 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-13900 affect?

CVE-2024-13900 affects head\, footer\, and post injections. Severity is medium (CVSS 4.1). 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 inj

How urgent is CVE-2024-13900?

Priority 23/100. No elevated risk signals yet.

Software pages

WordPress vulnerabilities · PHP vulnerabilities

References

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