CVE-2025-30557: Easy 301 Redirects CSRF Vulnerability

CVE-2025-30557 Overview

CVE-2025-30557 is a Cross-Site Request Forgery (CSRF) vulnerability affecting the odihost Easy 301 Redirects WordPress plugin. The flaw impacts all plugin versions up to and including 1.33. An attacker can trick an authenticated administrator into submitting a forged request that modifies redirect configurations on the target site.

The issue is tracked under CWE-352 (Cross-Site Request Forgery). Exploitation requires user interaction, typically by luring an authenticated user to visit an attacker-controlled page. Successful exploitation results in limited integrity impact on the WordPress site.

Critical Impact
An attacker can manipulate 301 redirect entries on affected WordPress sites, potentially redirecting visitors to malicious destinations without administrator consent.

Affected Products

odihost Easy 301 Redirects WordPress plugin
All versions from n/a through 1.33
WordPress installations using odihost-easy-redirect-301

Discovery Timeline

2025-03-24 - CVE-2025-30557 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-30557

Vulnerability Analysis

The Easy 301 Redirects plugin fails to validate the origin of state-changing HTTP requests to its administrative endpoints. Without a valid anti-CSRF token check, the plugin processes requests based solely on the requester's active WordPress session cookie.

The vulnerability falls under [CWE-352] Cross-Site Request Forgery. Attackers exploit the trust that the plugin places in the authenticated user's browser session. The attack requires the victim to visit a malicious page while logged into WordPress.

The EPSS score is 0.197%, indicating a low probability of exploitation activity in the near term. No public proof-of-concept exploit has been published, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.

Root Cause

The plugin's request handlers do not verify WordPress nonces (wp_verify_nonce()) or equivalent CSRF tokens before processing form submissions. State-changing operations such as adding, modifying, or deleting redirect rules execute without confirming that the request originated from a legitimate administrative context within the WordPress admin panel.

Attack Vector

The attack vector is network-based and requires user interaction. An attacker crafts a malicious HTML page containing a hidden form or JavaScript that submits a request to the vulnerable plugin endpoint. When an authenticated WordPress administrator visits the malicious page, the browser automatically includes valid session cookies with the forged request.

The plugin then executes the redirect modification as if it were a legitimate administrative action. See the Patchstack CSRF Vulnerability Advisory for additional technical context.

Detection Methods for CVE-2025-30557

Indicators of Compromise

Unexpected new or modified entries in the Easy 301 Redirects plugin configuration
Redirect destinations pointing to unfamiliar external domains
WordPress access logs showing POST requests to plugin endpoints originating from off-site Referer headers
User reports of unexpected redirects from previously stable URLs

Detection Strategies

Monitor the WordPress wp_options table and plugin storage for unauthorized changes to redirect rules
Inspect web server access logs for POST requests to odihost-easy-redirect-301 admin handlers lacking a same-origin Referer
Deploy a Web Application Firewall (WAF) rule to flag administrative POST requests missing valid WordPress nonce parameters

Monitoring Recommendations

Enable WordPress audit logging plugins to record all plugin settings changes with user attribution
Alert on modifications to redirect rules outside of scheduled maintenance windows
Track outbound traffic from site visitors to detect redirection to attacker-controlled infrastructure

How to Mitigate CVE-2025-30557

Immediate Actions Required

Update the Easy 301 Redirects plugin to a version above 1.33 once the vendor publishes a patched release
Audit existing redirect rules and remove any entries that were not created by authorized administrators
Restrict WordPress administrator sessions by enforcing short session lifetimes and logging out of the admin panel when not in use

Patch Information

At the time of publication, the Patchstack advisory tracks patch availability for versions above 1.33. Site owners should monitor the plugin's WordPress.org repository page for an updated release and apply it immediately upon publication.

Workarounds

Deactivate the Easy 301 Redirects plugin until a patched version is released, and manage redirects through server-level .htaccess or Nginx configuration
Deploy a WAF policy that blocks cross-origin POST requests to WordPress admin endpoints
Require administrators to use dedicated browsers or browser profiles for WordPress administration to reduce cross-site attack surface

bash

# Example Nginx rule to block cross-origin admin POSTs
location ~ /wp-admin/admin-post\.php {
    if ($http_referer !~* ^https?://your-domain\.com) {
        return 403;
    }
}