CVE-2025-31869

6.5 MEDIUM

📋 TL;DR

This stored Cross-Site Scripting (XSS) vulnerability in the Black Widgets For Elementor WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the malicious content, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • Black Widgets For Elementor WordPress Plugin
Versions: n/a through 1.3.9
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress with Elementor page builder installed. The vulnerability exists in the plugin's widget rendering functionality.

⚠️ 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, take over WordPress sites, deface websites, redirect visitors to malicious sites, or install backdoors for persistent access.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially compromising user accounts and performing actions on their behalf.

🟢

If Mitigated

With proper Content Security Policy (CSP) headers and input validation, the impact is limited to the specific vulnerable plugin component only.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Stored XSS vulnerabilities in WordPress plugins are commonly exploited. While no public PoC exists, the vulnerability type is well-understood and easily weaponized.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.4.0 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/black-widgets/vulnerability/wordpress-black-widgets-for-elementor-plugin-1-3-9-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 'Black Widgets For Elementor'. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 1.4.0+ from WordPress.org and replace the plugin files.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily deactivate the Black Widgets For Elementor plugin until patched

wp plugin deactivate black-widgets

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 nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";

🧯 If You Can't Patch

  • Remove or disable the Black Widgets For Elementor plugin completely
  • Implement web application firewall (WAF) rules to block XSS payloads

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for Black Widgets For Elementor version

Check Version:

wp plugin get black-widgets --field=version

Verify Fix Applied:

Verify plugin version is 1.4.0 or higher in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to WordPress admin-ajax.php with script payloads
  • Multiple failed login attempts following suspicious content updates

Network Indicators:

  • Outbound connections to unknown domains from WordPress site
  • Unexpected JavaScript includes in page responses

SIEM Query:

source="wordpress.log" AND ("black-widgets" OR "admin-ajax.php") AND ("script" OR "javascript" OR "onload" OR "onerror")

🔗 References

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