CVE-2025-30530

5.9 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the AI Preloader WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the injected scripts, the attacker can steal session cookies, redirect users, or perform actions on their behalf. All WordPress sites using AI Preloader versions up to 1.0.2 are affected.

💻 Affected Systems

Products:
  • AI Preloader WordPress Plugin
Versions: n/a through 1.0.2
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with the AI Preloader plugin 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 session cookies, gain administrative access to the WordPress site, install backdoors, deface the site, or pivot to internal network systems.

🟠

Likely Case

Attackers inject malicious JavaScript that steals user session cookies or redirects users to phishing sites when they visit affected pages.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized before being stored or displayed to users.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

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

Stored XSS vulnerabilities in WordPress plugins are commonly exploited. The Patchstack advisory provides technical details about the vulnerability.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.0.3 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/ai-preloader/vulnerability/wordpress-ai-preloader-plugin-1-0-2-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 AI Preloader and click 'Update Now'. 4. Verify the plugin version is 1.0.3 or higher.

🔧 Temporary Workarounds

Disable AI Preloader Plugin

all

Temporarily deactivate the vulnerable plugin until patched

wp plugin deactivate ai-preloader

Implement Content Security Policy

all

Add CSP headers to restrict script execution sources

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to wp-config.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");

🧯 If You Can't Patch

  • Remove the AI Preloader plugin completely from your WordPress installation
  • Implement web application firewall (WAF) rules to block XSS payloads targeting this plugin

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Installed Plugins → AI Preloader version. If version is 1.0.2 or earlier, you are vulnerable.

Check Version:

wp plugin get ai-preloader --field=version

Verify Fix Applied:

After updating, verify AI Preloader version shows 1.0.3 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to AI Preloader plugin endpoints
  • JavaScript payloads in plugin-related form submissions
  • Multiple failed XSS attempts in web server logs

Network Indicators:

  • HTTP requests containing script tags or JavaScript code targeting AI Preloader endpoints
  • Unusual outbound connections from WordPress site after visiting pages with AI Preloader

SIEM Query:

source="web_server_logs" AND (uri="*ai-preloader*" OR uri="*ai_preloader*") AND (content="<script>" OR content="javascript:" OR content="onload=" OR content="onerror=")

🔗 References

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