CVE-2025-49347
📋 TL;DR
This CSRF vulnerability in the WP sIFR WordPress plugin allows attackers to trick authenticated administrators into executing malicious actions, leading to stored cross-site scripting (XSS). It affects all WordPress sites running WP sIFR plugin versions up to and including 0.6.8.1. Attackers can inject malicious scripts that execute in users' browsers when visiting compromised pages.
💻 Affected Systems
- WordPress WP sIFR 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
Attackers could inject persistent malicious scripts that steal administrator credentials, deface websites, redirect users to malicious sites, or install backdoors for further compromise.
Likely Case
Attackers create fake admin interfaces or forms that trick logged-in administrators into executing actions that inject malicious JavaScript into website content.
If Mitigated
With proper CSRF protections and content security policies, the attack surface is reduced, though the vulnerability still exists in the codebase.
🎯 Exploit Status
Exploitation requires tricking authenticated users (particularly administrators) into clicking malicious links or visiting crafted pages. CSRF to XSS chain is well-documented and easily weaponized.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 0.6.8.1
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'WP sIFR' plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete the plugin immediately.
🔧 Temporary Workarounds
Disable WP sIFR Plugin
allTemporarily disable the vulnerable plugin until patched version is available
wp plugin deactivate wp-sifr
Implement CSRF Tokens Manually
allAdd CSRF protection to plugin forms if you must keep it active
Add nonce verification to plugin form handlers: wp_nonce_field(), wp_verify_nonce()
🧯 If You Can't Patch
- Remove WP sIFR plugin completely from all WordPress installations
- Implement strict Content Security Policy (CSP) headers to mitigate XSS impact
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for WP sIFR version. If version is 0.6.8.1 or lower, you are vulnerable.Check Version:
wp plugin get wp-sifr --field=versionVerify Fix Applied:
After update, verify WP sIFR plugin version is higher than 0.6.8.1 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to wp-admin/admin-ajax.php or plugin-specific endpoints from unexpected referrers
- Multiple failed nonce verification attempts
Network Indicators:
- CSRF attack patterns: POST requests without proper referrer/origin headers
- Malicious JavaScript injection in plugin-related requests
SIEM Query:
source="wordpress" AND (uri_path="*wp-sifr*" OR plugin="wp-sifr") AND (http_method="POST" AND NOT referrer="*your-domain*"))