CVE-2025-57979
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the AuthorSure WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. It affects all AuthorSure plugin versions up to and including 2.3, potentially compromising any WordPress site using this vulnerable plugin.
💻 Affected Systems
- AuthorSure 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, perform actions as authenticated users, deface websites, or redirect visitors to malicious sites, potentially leading to complete site takeover.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies or credentials, perform unauthorized actions, or display fraudulent content to visitors.
If Mitigated
With proper input validation and output encoding, malicious scripts are neutralized before reaching users, preventing execution while maintaining functionality.
🎯 Exploit Status
Requires attacker to have ability to inject content into pages where AuthorSure processes user input.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 2.3
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find AuthorSure plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and remove plugin until patched version is released.
🔧 Temporary Workarounds
Disable AuthorSure Plugin
WordPressTemporarily disable the vulnerable plugin until patched version is available
wp plugin deactivate authorsure
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
- Implement web application firewall (WAF) rules to block XSS payloads
- Disable user input fields that feed into AuthorSure functionality
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for AuthorSure version. If version is 2.3 or earlier, you are vulnerable.Check Version:
wp plugin get authorsure --field=versionVerify Fix Applied:
After updating, verify AuthorSure plugin version is higher than 2.3 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests containing script tags to AuthorSure endpoints
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests with suspicious script payloads in parameters
- Unusual outbound connections from WordPress site after AuthorSure interactions
SIEM Query:
source="web_server" AND (uri="*authorsure*" AND (message="*<script>*" OR message="*javascript:*" OR message="*onload=*"))