CVE-2024-51639
📋 TL;DR
This vulnerability in the Hints Naver Blog WordPress plugin allows attackers to perform Cross-Site Request Forgery (CSRF) attacks that lead to Stored Cross-Site Scripting (XSS). Attackers can trick authenticated administrators into executing malicious actions that inject persistent scripts into blog content. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- WordPress Hints Naver Blog 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 malicious JavaScript that steals administrator credentials, defaces the blog, redirects visitors to malicious sites, or installs backdoors on the WordPress site.
Likely Case
Attackers create fake admin interfaces or links that trick logged-in administrators into unknowingly injecting malicious scripts into blog posts or pages.
If Mitigated
With proper CSRF tokens and input validation, the attack chain would be broken at the initial CSRF stage, preventing XSS injection.
🎯 Exploit Status
Exploitation requires tricking an authenticated administrator into visiting a malicious page while logged into WordPress. The CSRF-to-XSS chain is well-understood and weaponization is likely given the prevalence of WordPress.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.1 or later
Vendor Advisory: https://patchstack.com/database/vulnerability/naver-blog-api/wordpress-naver-blog-plugin-1-0-csrf-to-stored-xss-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Hints Naver Blog' plugin. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 1.0.1+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDisable the vulnerable plugin until patched
wp plugin deactivate naver-blog-api
CSRF Protection via .htaccess
linuxAdd basic CSRF protection headers at web server level
Header set X-Frame-Options "DENY"
Header set Content-Security-Policy "frame-ancestors 'none'"
🧯 If You Can't Patch
- Remove the Hints Naver Blog plugin completely from the WordPress installation
- Implement web application firewall (WAF) rules to block CSRF attempts and XSS payloads targeting the plugin endpoints
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for 'Hints Naver Blog' version 1.0 or earlierCheck Version:
wp plugin get naver-blog-api --field=versionVerify Fix Applied:
Verify plugin version is 1.0.1 or higher in WordPress admin plugins page📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /wp-admin/admin-ajax.php or plugin-specific endpoints from unexpected referrers
- Administrative users executing plugin actions from suspicious IP addresses or user-agents
Network Indicators:
- HTTP requests containing malicious script tags or JavaScript payloads targeting plugin endpoints
- CSRF attempts with missing or invalid nonce/token parameters
SIEM Query:
source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "naver-blog") AND (http_method="POST" AND (referrer NOT CONTAINS own_domain OR user_agent="malicious"))