CVE-2025-39529
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the Scriptless Social Sharing 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. This affects all WordPress sites using vulnerable versions of the Scriptless Social Sharing plugin.
💻 Affected Systems
- Scriptless Social Sharing 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 visitors 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, preventing exploitation.
🎯 Exploit Status
Stored XSS vulnerabilities typically require some level of access to inject payloads, but once injected, exploitation is automatic when users visit affected pages.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.2.5 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Scriptless Social Sharing' and click 'Update Now'. 4. Verify the plugin version is 3.2.5 or higher.
🔧 Temporary Workarounds
Disable Scriptless Social Sharing Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate scriptless-social-sharing
Implement Content Security Policy
allAdd CSP headers to restrict script execution
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
- Implement web application firewall (WAF) rules to block XSS payloads
- Disable user input fields that could be vulnerable or implement strict input validation
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Scriptless Social Sharing version. If version is 3.2.4 or lower, you are vulnerable.Check Version:
wp plugin get scriptless-social-sharing --field=versionVerify Fix Applied:
After updating, verify the plugin shows version 3.2.5 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to plugin endpoints
- JavaScript payloads in request parameters
- Multiple failed injection attempts
Network Indicators:
- Suspicious script tags in HTTP requests to WordPress
- Unexpected redirects from plugin pages
SIEM Query:
source="wordpress.log" AND ("scriptless" OR "social-sharing") AND ("<script>" OR "javascript:" OR "onload=" OR "onerror=")