CVE-2025-49291
📋 TL;DR
A Cross-Site Request Forgery (CSRF) vulnerability in the Calculated Fields Form WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions. This affects WordPress sites using the plugin from any version up to 5.3.58. Attackers could modify form settings or potentially perform other administrative actions.
💻 Affected Systems
- Calculated Fields Form WordPress Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker could trick an administrator into changing form configurations, redirecting form submissions to malicious sites, or performing other administrative actions that compromise form functionality or data integrity.
Likely Case
Attackers modify form settings to redirect submissions, change calculation formulas, or alter form behavior in ways that could lead to data manipulation or phishing.
If Mitigated
With proper CSRF protections and user awareness, the risk is limited to unsuccessful exploitation attempts with no impact on form functionality.
🎯 Exploit Status
Exploitation requires social engineering to trick an authenticated administrator into clicking a malicious link or visiting a compromised page.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.3.59 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Calculated Fields Form'. 4. Click 'Update Now' if available, or download version 5.3.59+ from WordPress.org. 5. Activate the updated plugin.
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDisable the plugin until patched to prevent exploitation.
wp plugin deactivate calculated-fields-form
Admin Session Management
allImplement strict session timeouts and require re-authentication for sensitive actions.
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict form actions.
- Use browser extensions that block CSRF attempts and educate administrators about phishing risks.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for Calculated Fields Form version. If version is 5.3.58 or lower, the system is vulnerable.Check Version:
wp plugin get calculated-fields-form --field=versionVerify Fix Applied:
Verify the plugin version is 5.3.59 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unexpected form configuration changes in WordPress logs
- Multiple failed admin actions from same session
Network Indicators:
- Unusual POST requests to wp-admin/admin-ajax.php with calculated-fields-form parameters
SIEM Query:
source="wordpress.log" AND "calculated-fields-form" AND ("action=update" OR "action=save")