CVE-2025-46250

5.9 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the VForm WordPress plugin allows attackers to inject malicious scripts into web pages that persist in the database and execute when other users view affected pages. All WordPress sites using VForm versions up to 3.1.14 are affected, potentially compromising user sessions and site integrity.

💻 Affected Systems

Products:
  • VForm WordPress Plugin
Versions: n/a through 3.1.14
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations with VForm plugin enabled are vulnerable regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator credentials, take over the WordPress site, install backdoors, deface the website, or redirect users to malicious sites, leading to complete site compromise and data theft.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies, perform actions on behalf of authenticated users, or redirect users to phishing pages, potentially compromising multiple user accounts.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized, preventing execution while maintaining form functionality.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Stored XSS vulnerabilities are commonly exploited in the wild, and proof-of-concept details are publicly available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.1.15 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/v-form/vulnerability/wordpress-vform-3-1-14-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 VForm and click 'Update Now'. 4. Verify update to version 3.1.15 or higher.

🔧 Temporary Workarounds

Disable VForm Plugin

all

Temporarily disable the vulnerable plugin until patching is possible

wp plugin deactivate v-form

Implement WAF Rules

all

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

🧯 If You Can't Patch

  • Implement strict Content Security Policy (CSP) headers to limit script execution
  • Enable WordPress security plugins with XSS protection features

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for VForm version. If version is 3.1.14 or lower, you are vulnerable.

Check Version:

wp plugin get v-form --field=version

Verify Fix Applied:

After updating, verify VForm version shows 3.1.15 or higher in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to VForm endpoints with script tags or JavaScript payloads
  • Multiple failed XSS attempts in web server logs

Network Indicators:

  • HTTP requests containing <script> tags or JavaScript code to VForm-related URLs
  • Unusual outbound connections from WordPress site after form submissions

SIEM Query:

source="web_server_logs" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "v-form") AND (http_method="POST") AND (request_body CONTAINS "<script>" OR request_body CONTAINS "javascript:")

🔗 References

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