CVE-2025-28906
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the Skitter Slideshow WordPress 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 Skitter Slideshow versions up to 2.5.2. Attackers can steal session cookies, redirect users, or perform actions on behalf of authenticated users.
💻 Affected Systems
- WordPress Skitter Slideshow 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
XSS vulnerabilities are commonly exploited and weaponized. Attackers need some level of access to inject malicious scripts.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.5.3 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Skitter Slideshow. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin, then install fresh version 2.5.3+ from WordPress repository.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the Skitter Slideshow plugin until patched
wp plugin deactivate wp-skitter-slideshow
Content Security Policy
allImplement strict Content Security Policy headers to mitigate XSS impact
Add 'Content-Security-Policy: default-src 'self'; script-src 'self'' to web server configuration
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Disable user input fields that accept HTML/JavaScript in slideshow configuration
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Skitter Slideshow version. If version is 2.5.2 or earlier, you are vulnerable.Check Version:
wp plugin get wp-skitter-slideshow --field=versionVerify Fix Applied:
Verify plugin version is 2.5.3 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to slideshow configuration endpoints
- JavaScript payloads in request parameters containing alert(), document.cookie, or eval()
Network Indicators:
- Unexpected outbound connections to external domains from slideshow pages
- Suspicious JavaScript being served from slideshow content
SIEM Query:
source="wordpress.log" AND ("skitter" OR "slideshow") AND ("script" OR "javascript" OR "alert(" OR "document.cookie")