CVE-2025-26949
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the WordPress Team Section Block plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. The vulnerability affects all WordPress sites using the Team Section Block plugin version 1.0.9 or earlier. Attackers can steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users.
💻 Affected Systems
- WordPress Team Section Block 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 visitors to malicious sites that distribute malware.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, potentially compromising user accounts with limited privileges or redirecting visitors to phishing pages.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before being stored or displayed, preventing execution in users' browsers.
🎯 Exploit Status
Stored XSS vulnerabilities in WordPress plugins are frequently exploited in the wild. While no public PoC is documented, the vulnerability type and WordPress ecosystem make weaponization likely.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.10 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Team Section Block' and check if update is available. 4. Click 'Update Now' if update is available. 5. If no update appears, manually download version 1.0.10+ from WordPress.org and replace the plugin files.
🔧 Temporary Workarounds
Disable Team Section Block plugin
allTemporarily deactivate the vulnerable plugin until patched
wp plugin deactivate team-section
Implement Content Security Policy
allAdd CSP headers to mitigate XSS impact by restricting script execution
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or add to wp-config.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Remove or disable the Team Section Block plugin entirely
- Implement web application firewall (WAF) rules to block XSS payloads targeting the plugin
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for Team Section Block version. If version is 1.0.9 or earlier, you are vulnerable.Check Version:
wp plugin get team-section --field=versionVerify Fix Applied:
After updating, verify plugin version shows 1.0.10 or later in WordPress admin plugins page.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to team-section endpoints
- JavaScript payloads in form submissions
- Multiple failed XSS attempts in web server logs
Network Indicators:
- Suspicious JavaScript in HTTP POST parameters
- Requests to known XSS testing endpoints
SIEM Query:
source="web_server" AND (uri="*team-section*" OR plugin="team-section") AND (method="POST" OR params="*<script>*" OR params="*javascript:*")