CVE-2025-62943
📋 TL;DR
This stored XSS vulnerability in the Next Page, Not Next Post WordPress plugin allows attackers to inject malicious scripts into web pages. When users view affected pages, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using vulnerable plugin versions (0.3.0 and earlier) are affected.
💻 Affected Systems
- WordPress Next Page, Not Next Post 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 steal administrator session cookies, take over WordPress sites, deface websites, or redirect users to malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially compromising user accounts.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users.
🎯 Exploit Status
Requires attacker to have ability to inject malicious input into the plugin's functionality. Likely requires some level of access to WordPress content management.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 0.3.0
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Next Page, Not Next Post'. 4. Click 'Update Now' if available. 5. If no update available, deactivate and delete the plugin.
🔧 Temporary Workarounds
Disable vulnerable plugin
WordPressTemporarily disable the Next Page, Not Next Post plugin until patched version is available
wp plugin deactivate next-page-not-next-post
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Enable Content Security Policy (CSP) headers to restrict script execution
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins → Next Page, Not Next Post versionCheck Version:
wp plugin get next-page-not-next-post --field=versionVerify Fix Applied:
Verify plugin version is greater than 0.3.0 in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests containing script tags to plugin endpoints
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests containing malicious JavaScript payloads to WordPress admin or plugin endpoints
SIEM Query:
source="web_server_logs" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=") AND uri="*next-page-not-next-post*"