CVE-2025-24540: SeedProd WordPress Plugin CSRF Vulnerability

CVE-2025-24540 Overview

CVE-2025-24540 is a Cross-Site Request Forgery (CSRF) vulnerability affecting the SeedProd Coming Soon Page, Under Construction & Maintenance Mode plugin for WordPress. The flaw impacts all plugin versions up to and including 6.18.9. An attacker can craft a malicious request that, when triggered by an authenticated administrator visiting an attacker-controlled page, performs unintended state-changing actions on the WordPress site. The vulnerability is classified under CWE-352 and requires user interaction to succeed.

Critical Impact
An attacker can trick authenticated WordPress administrators into executing unintended actions in the SeedProd plugin, resulting in limited integrity impact on affected sites.

Affected Products

SeedProd Coming Soon Page, Under Construction & Maintenance Mode plugin for WordPress
Plugin versions from initial release through 6.18.9
WordPress installations with the vulnerable plugin active

Discovery Timeline

2025-01-27 - CVE-2025-24540 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-24540

Vulnerability Analysis

The SeedProd plugin fails to enforce proper anti-CSRF protections on one or more state-changing actions. WordPress plugins are expected to validate requests using nonces via functions such as wp_verify_nonce() or check_admin_referer(). When these checks are missing or improperly implemented, an attacker can forge requests that execute in the context of a logged-in administrator.

The attack requires user interaction, meaning an administrator must visit a malicious page or click a crafted link while authenticated to the target WordPress site. The scope remains unchanged, and the vulnerability produces a limited integrity impact without directly exposing confidential data or affecting availability.

Root Cause

The root cause is missing or insufficient CSRF token validation on privileged plugin endpoints. Without a valid nonce check, the plugin cannot distinguish between intentional administrator requests and forged cross-origin requests triggered by the victim's browser. This is a classic CWE-352 weakness.

Attack Vector

Exploitation is network-based and requires low attack complexity. The attacker hosts a page containing an auto-submitting form or crafted HTTP request that targets a vulnerable plugin endpoint. When an authenticated WordPress administrator loads the attacker's page, the browser submits the forged request with valid session cookies. The plugin processes the request as legitimate because it lacks CSRF validation.

For technical details, see the Patchstack CSRF Vulnerability Report.

Detection Methods for CVE-2025-24540

Indicators of Compromise

Unexpected changes to SeedProd plugin settings or coming-soon page configurations without corresponding administrator activity in audit logs
WordPress admin-ajax or plugin endpoint requests originating from external Referer headers not matching the site's domain
Administrator sessions performing plugin actions immediately after visiting untrusted external links

Detection Strategies

Review WordPress access logs for POST requests to SeedProd plugin endpoints missing valid nonce parameters or containing suspicious Referer headers
Enable WordPress activity logging plugins to record administrative changes and correlate them with browsing activity
Monitor plugin version inventory to confirm all instances are updated beyond 6.18.9

Monitoring Recommendations

Alert on modifications to SeedProd plugin configuration outside normal maintenance windows
Track authenticated administrator sessions that generate cross-origin state-changing requests
Aggregate WordPress audit logs into a central SIEM for correlation with web proxy and browser telemetry

How to Mitigate CVE-2025-24540

Immediate Actions Required

Update the SeedProd Coming Soon Page, Under Construction & Maintenance Mode plugin to a version later than 6.18.9 as soon as a patched release becomes available
Restrict WordPress administrator accounts and require them to use dedicated browsers or browser profiles for administrative tasks
Audit recent plugin configuration changes for signs of unauthorized modification

Patch Information

At the time of the referenced advisory, all versions through 6.18.9 are affected. Administrators should consult the Patchstack CSRF Vulnerability Report and the vendor's plugin page for the latest fixed release, then apply the update through the WordPress plugin manager.

Workarounds

Deactivate the SeedProd plugin until a patched version is installed if the coming-soon functionality is not required
Deploy a Web Application Firewall (WAF) rule that enforces Referer and Origin header validation on WordPress admin endpoints
Instruct administrators to log out of WordPress before browsing untrusted sites and to avoid clicking unsolicited links while authenticated

bash

# Example WAF rule (ModSecurity) requiring same-origin Referer on wp-admin POST requests
SecRule REQUEST_METHOD "@streq POST" \
  "chain,phase:1,deny,status:403,id:1002450,msg:'Blocked cross-origin POST to wp-admin'"
  SecRule REQUEST_URI "@beginsWith /wp-admin/" \
    "chain"
    SecRule &REQUEST_HEADERS:Referer "@eq 0" \
      "t:none"