CVE-2025-30949
📋 TL;DR
CVE-2025-30949 is a PHP object injection vulnerability in the Guru Team Site Chat on Telegram WordPress plugin that allows attackers to execute arbitrary code through deserialization of untrusted data. This affects all WordPress sites running vulnerable versions of the plugin. Successful exploitation could lead to complete site compromise.
💻 Affected Systems
- Guru Team Site Chat on Telegram 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
Remote code execution leading to full server compromise, data theft, malware deployment, and complete site takeover.
Likely Case
Arbitrary code execution within WordPress context leading to backdoor installation, data exfiltration, and privilege escalation.
If Mitigated
Limited impact if proper input validation and output encoding are implemented, though deserialization vulnerabilities remain dangerous.
🎯 Exploit Status
Public exploit details available on Patchstack; deserialization attacks are well-documented and easily weaponized.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.5 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Site Chat on Telegram'. 4. Click 'Update Now' if available. 5. If no update available, deactivate and delete the plugin immediately.
🔧 Temporary Workarounds
Disable Plugin
allDeactivate and remove the vulnerable plugin from WordPress
wp plugin deactivate site-chat-on-telegram
wp plugin delete site-chat-on-telegram
WAF Rule
allImplement web application firewall rules to block deserialization attempts
🧯 If You Can't Patch
- Immediately deactivate and remove the plugin from all WordPress installations
- Implement strict input validation and sanitization for all user-controlled data
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for 'Site Chat on Telegram' version 1.0.4 or earlierCheck Version:
wp plugin get site-chat-on-telegram --field=versionVerify Fix Applied:
Verify plugin version is 1.0.5 or later, or confirm plugin is completely removed📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php or plugin endpoints
- PHP error logs showing unserialize() warnings or errors
- Unexpected file creation in wp-content/uploads or plugin directories
Network Indicators:
- HTTP requests containing serialized PHP objects in parameters
- Traffic to known malicious domains from WordPress server
SIEM Query:
source="wordpress.log" AND ("site-chat-on-telegram" OR "admin-ajax.php") AND (POST OR "unserialize" OR "O:")