CVE-2025-26994
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the Zigaform WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the injected scripts, the attacker can steal session cookies, redirect users, or perform actions on their behalf. All WordPress sites using vulnerable versions of the Zigaform plugin are affected.
💻 Affected Systems
- Zigaform – Price Calculator & Cost Estimation Form Builder Lite
📦 What is this software?
Zigaform by Softdiscover
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator session cookies, gain administrative access to WordPress sites, install backdoors, deface websites, or steal sensitive user data.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, redirect users to phishing sites, or perform actions on behalf of authenticated users.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before being stored or displayed to users.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited. While no public PoC is confirmed, the vulnerability type suggests exploitation is straightforward for attackers with basic web security knowledge.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.4.3 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Zigaform plugin and click 'Update Now'. 4. Verify update completes successfully. 5. Clear any caching plugins or CDN caches.
🔧 Temporary Workarounds
Disable Zigaform Plugin
allTemporarily disable the vulnerable plugin until patching is possible
wp plugin deactivate zigaform-calculator-cost-estimation-form-builder-lite
Implement WAF Rules
allAdd web application firewall rules to block XSS payloads targeting Zigaform endpoints
🧯 If You Can't Patch
- Disable the Zigaform plugin immediately to prevent exploitation
- Implement strict Content Security Policy (CSP) headers to mitigate XSS impact
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Zigaform version. If version is 7.4.2 or earlier, you are vulnerable.Check Version:
wp plugin get zigaform-calculator-cost-estimation-form-builder-lite --field=versionVerify Fix Applied:
After updating, verify plugin version shows 7.4.3 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to Zigaform endpoints containing script tags or JavaScript code
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests containing common XSS payloads like <script>, javascript:, or onerror= to Zigaform endpoints
SIEM Query:
source="web_server_logs" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "zigaform") AND (http_method="POST" OR http_method="GET") AND (request_body CONTAINS "<script>" OR request_body CONTAINS "javascript:" OR request_body CONTAINS "onerror=")