CVE-2025-23455
📋 TL;DR
This CSRF vulnerability in the WP VTiger Synchronization WordPress plugin allows attackers to trick authenticated administrators into executing malicious actions, leading to stored cross-site scripting (XSS). Attackers can inject malicious scripts that execute in victims' browsers when they visit compromised pages. All WordPress sites using affected plugin versions are vulnerable.
💻 Affected Systems
- WP VTiger Synchronization WordPress 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 compromise administrator accounts, inject persistent malicious scripts across the site, steal session cookies, redirect users to malicious sites, or deface the website.
Likely Case
Attackers would typically inject malicious scripts to steal administrator session cookies or credentials, potentially gaining full control of the WordPress site.
If Mitigated
With proper CSRF protections and content security policies, the attack would be blocked at the initial request stage, preventing script injection.
🎯 Exploit Status
Exploitation requires tricking an authenticated administrator into clicking a malicious link or visiting a compromised page.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.1.1
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'WP VTiger Synchronization'. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete the plugin immediately.
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd CSRF protection to all plugin forms and actions
Content Security Policy
allImplement CSP headers to restrict script execution sources
🧯 If You Can't Patch
- Deactivate and remove the WP VTiger Synchronization plugin immediately
- Implement web application firewall rules to block CSRF attempts and XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for WP VTiger Synchronization versionCheck Version:
wp plugin list --name='WP VTiger Synchronization' --field=versionVerify Fix Applied:
Verify plugin version is greater than 1.1.1 or plugin is completely removed📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to plugin endpoints without referrer headers
- Multiple failed CSRF token validations
- Suspicious script tags in database content
Network Indicators:
- Cross-origin requests to plugin endpoints with malicious payloads
- Unexpected iframe or script injections in responses
SIEM Query:
source="wordpress" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "msstiger") AND (http_method="POST" AND referrer IS NULL)