CVE-2025-28929

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Tabbed Login Widget WordPress plugin allows attackers to inject malicious scripts into web pages. When exploited, these scripts execute in victims' browsers, potentially stealing credentials or performing unauthorized actions. WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • Tabbed Login Widget WordPress Plugin
Versions: n/a through 1.1.2
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations using vulnerable plugin versions are affected regardless of configuration.

⚠️ 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, take over WordPress sites, deface websites, or install backdoors for persistent access.

🟠

Likely Case

Attackers steal user session cookies and credentials, potentially compromising user accounts and performing actions on their behalf.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

XSS vulnerabilities are commonly exploited, though specific exploit details for this CVE aren't publicly documented.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.1.3 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/tabbed-login/vulnerability/wordpress-tabbed-login-widget-plugin-1-1-2-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 'Tabbed Login Widget'. 4. Click 'Update Now' if update available. 5. Alternatively, delete plugin and install fresh version 1.1.3+ from WordPress repository.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate tabbed-login

Content Security Policy

all

Implement CSP headers to restrict script execution

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

  • Implement web application firewall (WAF) rules to block XSS payloads
  • Disable user registration/login features if not essential

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Tabbed Login Widget version. If version is 1.1.2 or earlier, you're vulnerable.

Check Version:

wp plugin get tabbed-login --field=version

Verify Fix Applied:

Verify plugin version is 1.1.3 or later in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to login/widget endpoints
  • Suspicious script tags in form submissions
  • Multiple failed login attempts from same IP

Network Indicators:

  • Malicious script payloads in HTTP requests
  • Unexpected redirects to external domains

SIEM Query:

source="wordpress.log" AND ("tabbed-login" OR "login-widget") AND ("<script>" OR "javascript:" OR "onload=" OR "onerror=")

🔗 References

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