CVE-2025-39464

7.1 HIGH

📋 TL;DR

This reflected cross-site scripting (XSS) vulnerability in the AdminQuickbar WordPress plugin allows attackers to inject malicious scripts into web pages viewed by administrators. The vulnerability affects all versions up to 1.9.1 and requires user interaction to exploit. WordPress site administrators using the vulnerable plugin are at risk.

💻 Affected Systems

Products:
  • AdminQuickbar WordPress Plugin
Versions: n/a through 1.9.1
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with AdminQuickbar plugin enabled. Exploitation requires administrator interaction with malicious links.

⚠️ 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, perform actions as the administrator (including content modification, plugin installation, or site takeover), or redirect users to malicious sites.

🟠

Likely Case

Attackers craft malicious links containing XSS payloads that, when clicked by administrators, execute scripts in the administrator's browser context, potentially stealing session tokens.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized before execution, preventing successful exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Reflected XSS vulnerabilities are commonly exploited via phishing or malicious links. No authentication required to trigger the vulnerability, but administrator interaction is needed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.9.2 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/adminquickbar/vulnerability/wordpress-adminquickbar-plugin-1-9-1-reflected-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 AdminQuickbar and click 'Update Now' if available. 4. Alternatively, download version 1.9.2+ from WordPress repository and replace the plugin files.

🔧 Temporary Workarounds

Disable AdminQuickbar Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate adminquickbar

Implement WAF Rules

all

Add web application firewall rules to block XSS payloads targeting AdminQuickbar endpoints

🧯 If You Can't Patch

  • Implement Content Security Policy (CSP) headers to restrict script execution
  • Educate administrators about phishing risks and not clicking untrusted links

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for AdminQuickbar version. If version is 1.9.1 or earlier, you are vulnerable.

Check Version:

wp plugin get adminquickbar --field=version

Verify Fix Applied:

After updating, verify AdminQuickbar version shows 1.9.2 or later in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual GET/POST requests to AdminQuickbar endpoints with script tags or JavaScript in parameters
  • Multiple failed login attempts following suspicious link clicks

Network Indicators:

  • HTTP requests containing <script>, javascript:, or eval() in query parameters to AdminQuickbar URLs

SIEM Query:

source="web_server" AND (uri="*adminquickbar*" AND (query="*<script>*" OR query="*javascript:*" OR query="*eval(*"))

🔗 References

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