CVE-2024-4535
📋 TL;DR
The KKProgressbar2 Free WordPress plugin versions through 1.1.4.2 lack CSRF protection on certain endpoints, allowing attackers to trick authenticated users into performing unintended actions. This affects WordPress sites using the vulnerable plugin version, potentially compromising site integrity or user data.
💻 Affected Systems
- KKProgressbar2 Free WordPress Plugin
📦 What is this software?
Kkprogressbar2 by Krzysztof Furtak
Kkprogressbar2 by Krzysztof Furtak
Kkprogressbar2 by Krzysztof Furtak
Kkprogressbar2 by Krzysztof Furtak
Kkprogressbar2 by Krzysztof Furtak
Kkprogressbar2 by Krzysztof Furtak
Kkprogressbar2 by Krzysztof Furtak
Kkprogressbar2 by Krzysztof Furtak
Kkprogressbar2 by Krzysztof Furtak
Kkprogressbar2 by Krzysztof Furtak
Kkprogressbar2 by Krzysztof Furtak
⚠️ Risk & Real-World Impact
Worst Case
Attackers could manipulate plugin settings, inject malicious content, or perform administrative actions without authorization, leading to site takeover or data compromise.
Likely Case
Unauthorized changes to plugin settings or content injection, disrupting site functionality or displaying malicious content.
If Mitigated
Limited impact if proper CSRF tokens are implemented or plugin is disabled, though residual risk from other vulnerabilities may persist.
🎯 Exploit Status
Exploitation requires social engineering to trick authenticated users; no public exploit code is known as of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.1.4.3 or later
Vendor Advisory: https://wpscan.com/vulnerability/d4980886-da10-4bbc-a84a-fe071ab3b755/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find KKProgressbar2 Free and update to version 1.1.4.3 or later. 4. Verify update completes successfully.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily deactivate the KKProgressbar2 Free plugin to prevent exploitation until patching is possible.
wp plugin deactivate kkprogressbar2-free
Implement CSRF Protection
allAdd custom CSRF tokens to plugin forms if source code access is available, though this is not recommended for non-developers.
🧯 If You Can't Patch
- Restrict plugin access to trusted users only by limiting admin privileges.
- Monitor site logs for unusual activity related to the plugin endpoints.
🔍 How to Verify
Check if Vulnerable:
Check the plugin version in WordPress admin under Plugins > Installed Plugins; if version is 1.1.4.2 or earlier, it is vulnerable.Check Version:
wp plugin get kkprogressbar2-free --field=versionVerify Fix Applied:
After updating, confirm the plugin version is 1.1.4.3 or later in the same location.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to KKProgressbar2 plugin endpoints without referrer headers or CSRF tokens.
- Unexpected changes in plugin settings or content from unverified sources.
Network Indicators:
- Traffic patterns showing requests to plugin admin pages from unexpected IPs or without authentication tokens.
SIEM Query:
source="wordpress_logs" AND (uri="/wp-admin/admin-ajax.php" OR uri CONTAINS "kkprogressbar2") AND method="POST" AND NOT referrer CONTAINS own_domain