CVE-2025-52788
📋 TL;DR
This Cross-Site Scripting (XSS) vulnerability in the CaptionPix WordPress plugin allows attackers to inject malicious scripts into web pages viewed by other users. When exploited, it can lead to session hijacking, credential theft, or website defacement. All WordPress sites using CaptionPix versions up to 1.8 are affected.
💻 Affected Systems
- CaptionPix 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 steal administrator credentials, take over the WordPress site, install backdoors, and compromise all user data.
Likely Case
Attackers hijack user sessions, steal cookies, redirect users to malicious sites, or deface website content.
If Mitigated
With proper input validation and output encoding, the attack fails and no malicious scripts execute.
🎯 Exploit Status
XSS vulnerabilities are commonly exploited and toolkits exist. The referenced advisory suggests exploitation details are publicly available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.9 or later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/captionpix/vulnerability/wordpress-captionpix-1-8-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 CaptionPix and update to version 1.9 or later. 4. If update not available, deactivate and delete the plugin.
🔧 Temporary Workarounds
Disable CaptionPix Plugin
allTemporarily deactivate the vulnerable plugin until patched.
wp plugin deactivate captionpix
Implement Web Application Firewall (WAF)
allConfigure WAF rules to block XSS payloads targeting CaptionPix endpoints.
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution sources.
- Use input validation and output encoding in custom code that interacts with CaptionPix.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > CaptionPix version. If version is 1.8 or earlier, you are vulnerable.Check Version:
wp plugin get captionpix --field=versionVerify Fix Applied:
After updating, confirm CaptionPix version is 1.9 or later in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual GET/POST requests containing script tags or JavaScript payloads to CaptionPix endpoints
- 404 errors for known XSS exploitation patterns
Network Indicators:
- HTTP requests with suspicious parameters like <script>alert()</script> in query strings
SIEM Query:
source="wordpress.log" AND ("captionpix" AND ("<script" OR "javascript:" OR "onerror="))