WP Headers And Footers <= 3.1.1 - Cross-Site Request Forgery to Arbitrary Options Update
Strategic Overview
- Status
- Patched in 3.1.2
- Affected Plugin
- Insert Headers And Footers
- Affected Version
<= 3.1.1- CVSS
- 7.5High
- Weakness type
- CWE-352 · Cross-Site Request Forgery (CSRF)
- CVE
CVE-2025-2111
At a glance
CVE-2025-2111 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the Insert Headers And Footers WordPress plugin, affecting versions <= 3.1.1. It carries a CVSS score of 7.5 (reachable over the network; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 3.1.2; sites on affected versions should update now. Disclosed April 2025, reported by Carlos Ferreira.
Vulnerability Overview
The Insert Headers And Footers plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.1.1. This is due to missing or incorrect nonce validation on the 'custom_plugin_set_option' function. This makes it possible for unauthenticated attackers to update arbitrary options on the WordPress site via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. This can be leveraged to update the default role for registration to administrator and enable user registration for attackers to gain administrative user access to a vulnerable site. The 'WPBRIGADE_SDK__DEV_MODE' constant must be set to 'true' to exploit the vulnerability.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, and no privileges on the target site. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-352: Cross-Site Request Forgery (CSRF)
Insert Headers And Footers <= 3.1.1 carries this weakness at custom_plugin_set_option, and reaching it takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.
An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Insert Headers And Footers the fix is 3.1.2: builds <= 3.1.1 are affected, anything from 3.1.2 onward is not.
Remediation
Update to version 3.1.2, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Insert Headers And Footers: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Insert Headers And Footers 3.1.2 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C