CVE-2025-46512
📋 TL;DR
This CSRF vulnerability in the Shamim Hasan Custom Functions WordPress plugin allows attackers to trick authenticated administrators into executing malicious actions, leading to stored cross-site scripting (XSS). Attackers can inject malicious scripts that execute in victims' browsers when they visit compromised pages. WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- Shamim Hasan Custom Functions WordPress Plugin
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could inject persistent malicious scripts that steal administrator credentials, hijack sessions, deface websites, or redirect users to malicious sites, potentially leading to complete site compromise.
Likely Case
Attackers create fake admin interfaces or forms that trick logged-in administrators into executing actions that inject malicious JavaScript, leading to session hijacking or credential theft.
If Mitigated
With proper CSRF tokens and input validation, the attack chain is broken, preventing both the CSRF and subsequent XSS.
🎯 Exploit Status
CSRF attacks are well-understood and easy to weaponize. The stored XSS component requires successful CSRF exploitation first.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.2 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Custom Functions' plugin. 4. Click 'Update Now' if update available. 5. If no update, deactivate and delete plugin, then install fresh version from WordPress repository.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched version is available
wp plugin deactivate custom-functions
Implement CSRF Protection
allAdd CSRF tokens to all plugin forms and validate them server-side
🧯 If You Can't Patch
- Remove plugin entirely and find alternative functionality
- Implement web application firewall (WAF) rules to block CSRF attempts and XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for 'Custom Functions' plugin version 1.1 or earlierCheck Version:
wp plugin get custom-functions --field=versionVerify Fix Applied:
Verify plugin version is 1.2 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to plugin endpoints without referrer headers
- Multiple failed CSRF token validations
- JavaScript injection in plugin-related database fields
Network Indicators:
- Cross-origin requests to plugin admin endpoints
- Suspicious iframe or form submissions targeting plugin URLs
SIEM Query:
source="wordpress.log" AND ("custom-functions" OR "CSRF token") AND ("failed" OR "invalid" OR "missing")