CVE-2025-22496
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the Notif Bell WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the injected scripts, the attacker can steal session cookies, redirect users, or perform actions on their behalf. All WordPress sites using Notif Bell plugin versions up to 0.9.8 are affected.
💻 Affected Systems
- Notif Bell 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 steal administrator session cookies, take over WordPress sites, install backdoors, deface websites, or redirect users to malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, potentially compromising user accounts and performing unauthorized actions.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited and weaponization is likely given the prevalence of WordPress sites.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.9.9 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Notif Bell plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download latest version from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable Notif Bell Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate notif-bell
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to wp-config.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Remove Notif Bell plugin completely from WordPress installation
- Implement web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Notif Bell version. If version is 0.9.8 or earlier, you are vulnerable.Check Version:
wp plugin get notif-bell --field=versionVerify Fix Applied:
After updating, verify Notif Bell plugin version is 0.9.9 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to Notif Bell endpoints with script tags
- Multiple failed XSS attempts in web server logs
- Suspicious user agent strings containing script payloads
Network Indicators:
- HTTP requests containing <script> tags in parameters
- Unusual outbound connections after visiting pages with Notif Bell content
SIEM Query:
source="web_server.logs" AND ("notif-bell" OR "notif_bell") AND ("<script>" OR "javascript:" OR "onload=" OR "onerror=")