CVE-2025-1307
📋 TL;DR
The Newscrunch WordPress theme contains a vulnerability that allows authenticated users with Subscriber-level access or higher to upload arbitrary files to the server. This can lead to remote code execution by uploading malicious files like PHP shells. All WordPress sites using Newscrunch theme versions up to 1.8.4.1 are affected.
💻 Affected Systems
- Newscrunch WordPress Theme
📦 What is this software?
Newscrunch by Spicethemes
⚠️ Risk & Real-World Impact
Worst Case
Full server compromise leading to data theft, defacement, malware distribution, or ransomware deployment.
Likely Case
Website defacement, backdoor installation, credential theft, and lateral movement within the hosting environment.
If Mitigated
Limited impact if file uploads are restricted by web application firewall or server-side controls.
🎯 Exploit Status
Exploitation requires authenticated access but is trivial once credentials are obtained. Public exploit code exists.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.8.4.2 or later
Vendor Advisory: https://themes.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=261789%40newscrunch&new=261789%40newscrunch&sfp_email=&sfph_mail=
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Check for Newscrunch theme update. 4. Update to version 1.8.4.2 or later. 5. Clear any caching plugins.
🔧 Temporary Workarounds
Disable vulnerable function
allRemove or comment out the vulnerable newscrunch_install_and_activate_plugin() function in functions.php
# Edit wp-content/themes/newscrunch/functions.php
# Find line 486 and comment out or remove the function
Restrict file uploads via .htaccess
linuxBlock PHP file execution in upload directories
<FilesMatch "\.(php|php5|php7|phtml|phar)$">
Order Allow,Deny
Deny from all
</FilesMatch>
🧯 If You Can't Patch
- Immediately deactivate and replace the Newscrunch theme with a secure alternative.
- Implement strict file upload filtering at the web server level and monitor for suspicious uploads.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Appearance > Themes for Newscrunch theme version. If version is 1.8.4.1 or lower, you are vulnerable.Check Version:
grep -i "version" wp-content/themes/newscrunch/style.css | head -1Verify Fix Applied:
After updating, verify theme version shows 1.8.4.2 or higher in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to theme directories
- POST requests to theme-related endpoints with file uploads
- Execution of unexpected PHP files in upload directories
Network Indicators:
- HTTP POST requests containing file uploads to theme-specific endpoints
- Unexpected outbound connections from web server
SIEM Query:
source="web_server_logs" AND (uri="/wp-content/themes/newscrunch" OR uri CONTAINS "newscrunch") AND method="POST" AND (user_agent CONTAINS "curl" OR user_agent CONTAINS "wget" OR user_agent="-")🔗 References
- https://themes.trac.wordpress.org/browser/newscrunch/1.8.3/functions.php#L486
- https://themes.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=261789%40newscrunch&new=261789%40newscrunch&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b55567e9-24e6-4738-b7f7-b95b541e6067?source=cve
