CVE-2025-58854

7.1 HIGH

📋 TL;DR

This CVE describes a Cross-Site Request Forgery (CSRF) vulnerability in the Ultimate AJAX Login WordPress plugin that can lead to Reflected Cross-Site Scripting (XSS). Attackers can trick authenticated administrators into executing malicious actions or injecting scripts. WordPress sites using Ultimate AJAX Login versions up to 1.2.1 are affected.

💻 Affected Systems

Products:
  • Ultimate AJAX Login WordPress Plugin
Versions: n/a through 1.2.1
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires the plugin to be installed and activated on a WordPress site. The vulnerability is present in default configurations.

⚠️ 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

An attacker could trick an administrator into performing unauthorized actions (like changing settings, creating admin users) or executing malicious JavaScript in the admin context, potentially leading to full site compromise.

🟠

Likely Case

Attackers could inject malicious scripts that steal session cookies or perform unauthorized actions when administrators visit specially crafted pages.

🟢

If Mitigated

With proper CSRF tokens and input validation, the vulnerability would be prevented, and impact would be minimal.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires tricking an authenticated user (typically an administrator) to click a malicious link or visit a crafted page. No authentication bypass is needed for the CSRF aspect.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.2.2 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/ultimate-ajax-login/vulnerability/wordpress-ultimate-ajax-login-plugin-1-2-1-cross-site-request-forgery-csrf-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Ultimate AJAX Login' and click 'Update Now' if available. 4. Alternatively, download version 1.2.2+ from WordPress.org and manually update via FTP or file manager.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily deactivate the Ultimate AJAX Login plugin until patched.

wp plugin deactivate ultimate-ajax-login

Implement CSRF Protection

all

Add custom CSRF tokens to plugin forms via custom code or security plugin.

🧯 If You Can't Patch

  • Disable the Ultimate AJAX Login plugin immediately.
  • Implement a Web Application Firewall (WAF) with CSRF and XSS protection rules.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin > Plugins > Installed Plugins for Ultimate AJAX Login version. If version is 1.2.1 or lower, you are vulnerable.

Check Version:

wp plugin get ultimate-ajax-login --field=version

Verify Fix Applied:

After updating, verify the plugin version shows 1.2.2 or higher in WordPress admin.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to Ultimate AJAX Login endpoints without referrer headers or CSRF tokens
  • JavaScript injection attempts in plugin-related logs

Network Indicators:

  • HTTP requests with suspicious parameters targeting the plugin's admin-ajax.php or similar endpoints

SIEM Query:

source="wordpress.log" AND (plugin="ultimate-ajax-login" AND version<="1.2.1")

🔗 References

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