CVE-2025-30566

6.5 MEDIUM

📋 TL;DR

This DOM-based Cross-Site Scripting (XSS) vulnerability in the Clink WordPress plugin allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability affects all Clink plugin versions up to 1.2.2, potentially compromising any WordPress site using this plugin.

💻 Affected Systems

Products:
  • Aryan Themes Clink WordPress Plugin
Versions: All versions up to and including 1.2.2
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with the Clink plugin active.

⚠️ 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 session cookies, redirect users to malicious sites, deface websites, or perform actions on behalf of authenticated users.

🟠

Likely Case

Session hijacking, credential theft, or malicious content injection affecting site visitors.

🟢

If Mitigated

Limited impact with proper Content Security Policy (CSP) headers and input validation in place.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

DOM-based XSS typically requires user interaction but can be easily weaponized in phishing campaigns.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.2.3 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/clink/vulnerability/wordpress-clink-1-2-2-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 Clink plugin and click 'Update Now'. 4. Verify version is 1.2.3 or higher.

🔧 Temporary Workarounds

Disable Clink Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate clink

Implement Content Security Policy

all

Add CSP headers to mitigate XSS attacks

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";

🧯 If You Can't Patch

  • Implement Web Application Firewall (WAF) with XSS protection rules
  • Disable user input fields that trigger the vulnerability if identifiable

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for Clink version 1.2.2 or lower

Check Version:

wp plugin list --name=clink --field=version

Verify Fix Applied:

Verify Clink plugin version is 1.2.3 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unusual JavaScript payloads in request logs
  • Multiple requests to same endpoint with script tags

Network Indicators:

  • Outbound connections to unknown domains after page load
  • Suspicious script execution patterns

SIEM Query:

source="wordpress.log" AND ("<script" OR "javascript:" OR "onerror=" OR "onload=")

🔗 References

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