CVE-2024-9839
📋 TL;DR
The Uix Slideshow WordPress plugin allows unauthenticated attackers to execute arbitrary shortcodes due to improper input validation. This vulnerability affects all versions up to 1.6.5, potentially enabling attackers to inject malicious code into WordPress sites using this plugin.
💻 Affected Systems
- Uix Slideshow 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 execute arbitrary PHP code via malicious shortcodes, leading to complete site compromise, data theft, or malware installation.
Likely Case
Attackers inject malicious shortcodes to deface websites, redirect visitors, or steal session cookies and user data.
If Mitigated
With proper input validation and shortcode filtering, impact is limited to non-critical shortcode execution.
🎯 Exploit Status
No public PoC but trivial exploitation via crafted HTTP requests to vulnerable endpoints.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.6.6 or later
Vendor Advisory: https://wordpress.org/plugins/uix-slideshow/#developers
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Uix Slideshow plugin. 4. Click 'Update Now' if update available. 5. If no update, manually download latest version from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate uix-slideshow
Restrict Access
allUse web application firewall to block requests to vulnerable plugin endpoints.
🧯 If You Can't Patch
- Disable the Uix Slideshow plugin immediately.
- Implement strict WAF rules to block suspicious shortcode execution attempts.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for Uix Slideshow version <= 1.6.5.Check Version:
wp plugin get uix-slideshow --field=versionVerify Fix Applied:
Confirm plugin version is 1.6.6 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /wp-admin/admin-ajax.php with 'action' parameter containing shortcode execution.
- Multiple failed shortcode execution attempts in WordPress debug logs.
Network Indicators:
- HTTP requests with malicious shortcode payloads targeting plugin endpoints.
- Unusual traffic patterns to /wp-content/plugins/uix-slideshow/ directories.
SIEM Query:
source="wordpress.log" AND ("uix-slideshow" OR "do_shortcode") AND status=200