CVE-2025-47557
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the MapSVG WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. All WordPress sites using MapSVG versions up to 8.5.31 are affected, potentially compromising user sessions and site integrity.
💻 Affected Systems
- MapSVG 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 credentials, take over the WordPress site, install backdoors, deface the website, or redirect users to malicious sites.
Likely Case
Attackers steal user session cookies, perform actions on behalf of authenticated users, or redirect users to phishing pages.
If Mitigated
With proper input validation and output encoding, the malicious scripts would be rendered harmless as text rather than executable code.
🎯 Exploit Status
XSS vulnerabilities are commonly exploited, and proof-of-concept details are publicly available in the advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 8.5.32 or later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/mapsvg/vulnerability/wordpress-mapsvg-plugin-8-5-31-cross-site-scripting-xss-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find MapSVG and click 'Update Now'. 4. Verify update completes successfully.
🔧 Temporary Workarounds
Disable MapSVG Plugin
allTemporarily disable the vulnerable plugin until patching is possible
wp plugin deactivate mapsvg
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 nginx config: add_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
- Restrict plugin access to trusted users only and monitor for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → MapSVG version. If version is 8.5.31 or earlier, you are vulnerable.Check Version:
wp plugin get mapsvg --field=versionVerify Fix Applied:
After updating, verify MapSVG version shows 8.5.32 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to MapSVG endpoints containing script tags or JavaScript code
- Multiple failed login attempts following MapSVG-related requests
Network Indicators:
- HTTP requests containing <script> tags or JavaScript in MapSVG-related parameters
- Outbound connections to suspicious domains from your WordPress site
SIEM Query:
source="wordpress.log" AND ("mapsvg" AND ("<script>" OR "javascript:" OR "onload=" OR "onerror="))