CVE-2024-33938

6.5 MEDIUM

📋 TL;DR

CVE-2024-33938 is a missing authorization vulnerability in the WordPress Sliding Widgets plugin that allows attackers to perform cross-site scripting (XSS) attacks. This affects all WordPress sites running Sliding Widgets plugin versions up to 1.5.0. Attackers can inject malicious scripts that execute in users' browsers when they visit compromised pages.

💻 Affected Systems

Products:
  • WordPress Sliding Widgets plugin
Versions: n/a through 1.5.0
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all WordPress installations with vulnerable plugin versions installed and activated.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator credentials, deface websites, redirect users to malicious sites, or install backdoors for persistent access.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies, perform actions on behalf of users, or display phishing content.

🟢

If Mitigated

With proper authorization checks and input validation, the XSS payload would be blocked or sanitized before execution.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

The vulnerability combines missing authorization with XSS, making exploitation straightforward once the attack vector is identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.5.1 or later

Vendor Advisory: https://patchstack.com/database/vulnerability/sliding-widgets/wordpress-sliding-widgets-plugin-1-5-0-broken-access-control-to-xss-vulnerability

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Sliding Widgets plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 1.5.1+ from WordPress repository and replace plugin files.

🔧 Temporary Workarounds

Disable Sliding Widgets Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate sliding-widgets

Implement WAF Rules

all

Add web application firewall rules to block XSS payloads targeting Sliding Widgets endpoints

🧯 If You Can't Patch

  • Remove Sliding Widgets plugin completely from the WordPress installation
  • Implement Content Security Policy (CSP) headers to restrict script execution

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Sliding Widgets version. If version is 1.5.0 or earlier, you are vulnerable.

Check Version:

wp plugin get sliding-widgets --field=version

Verify Fix Applied:

Verify plugin version is 1.5.1 or later in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to Sliding Widgets admin endpoints
  • JavaScript payloads in request parameters to plugin-related URLs

Network Indicators:

  • Suspicious script tags or JavaScript in HTTP requests to WordPress admin-ajax.php or plugin-specific endpoints

SIEM Query:

source="wordpress.log" AND ("sliding-widgets" OR "admin-ajax.php") AND ("script" OR "javascript" OR "onload" OR "onerror")

🔗 References

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