CVE-2025-12028
📋 TL;DR
This CSRF vulnerability in the IndieAuth WordPress plugin allows attackers to trick authenticated users into approving malicious OAuth authorization requests. Attackers can then steal authorization codes and obtain access tokens, potentially taking over victim accounts with full administrative privileges. All WordPress sites using IndieAuth plugin versions up to 4.5.4 are affected.
💻 Affected Systems
- WordPress IndieAuth Plugin
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete account takeover where attackers gain full administrative access to WordPress sites, allowing them to create, modify, or delete content, install malicious plugins, and compromise the entire site.
Likely Case
Attackers gain unauthorized access to user accounts with the granted OAuth scopes, potentially leading to content manipulation, data theft, or privilege escalation.
If Mitigated
With proper CSRF protections and user awareness, exploitation attempts fail, maintaining normal authentication flow security.
🎯 Exploit Status
Exploitation requires social engineering to trick authenticated users into clicking malicious links or visiting compromised pages while logged in.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.5.5 or later
Vendor Advisory: https://plugins.trac.wordpress.org/browser/indieauth
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'IndieAuth' plugin. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 4.5.5+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Disable IndieAuth Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate indieauth
Add CSRF Protection Manually
allAdd nonce verification to vulnerable endpoints via custom code
Add wp_verify_nonce() calls to login_form_indieauth() and authorization endpoint functions
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block CSRF attacks targeting /wp-login.php?action=indieauth endpoints
- Educate users about phishing risks and implement mandatory logout policies for inactive sessions
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins → IndieAuth version. If version is 4.5.4 or lower, system is vulnerable.Check Version:
wp plugin get indieauth --field=versionVerify Fix Applied:
Verify IndieAuth plugin version is 4.5.5 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Multiple failed OAuth authorization attempts from same IP
- Unusual authorization requests to /wp-login.php?action=indieauth
- Authorization codes issued to unfamiliar client applications
Network Indicators:
- HTTP POST requests to /wp-login.php?action=indieauth without proper referrer headers
- Cross-origin requests to authorization endpoints
SIEM Query:
source="wordpress.log" AND (uri="/wp-login.php?action=indieauth" OR plugin="indieauth") AND (status=200 OR status=302)🔗 References
- https://plugins.trac.wordpress.org/browser/indieauth/tags/4.5.4/includes/class-indieauth-authorization-endpoint.php#L411
- https://plugins.trac.wordpress.org/browser/indieauth/tags/4.5.4/includes/class-indieauth-authorization-endpoint.php#L418
- https://plugins.trac.wordpress.org/browser/indieauth/tags/4.5.4/includes/class-indieauth-authorization-endpoint.php#L476
- https://www.wordfence.com/threat-intel/vulnerabilities/id/42b373da-d5a6-4e3b-90f4-059da3641841?source=cve
