CVE-2025-58891

8.2 HIGH

📋 TL;DR

This vulnerability allows attackers to include local PHP files through improper filename control in the Sanger WordPress theme. Attackers can read sensitive files or execute arbitrary code by manipulating file inclusion parameters. All WordPress sites using Sanger theme versions up to 1.24.0 are affected.

💻 Affected Systems

Products:
  • AncoraThemes Sanger WordPress Theme
Versions: All versions up to and including 1.24.0
Operating Systems: Any OS running PHP
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with Sanger theme active. No special configuration needed.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete system compromise, data theft, and website defacement.

🟠

Likely Case

Sensitive file disclosure (configuration files, database credentials) and limited code execution.

🟢

If Mitigated

Unauthorized file access prevented, but vulnerability remains present in code.

🌐 Internet-Facing: HIGH - WordPress themes are typically internet-facing and accessible to unauthenticated users.
🏢 Internal Only: MEDIUM - Internal WordPress installations could still be exploited by internal attackers.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Simple path traversal or file inclusion payloads can exploit this vulnerability. Public exploit details available in security advisories.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 1.24.0 (check vendor for specific version)

Vendor Advisory: https://patchstack.com/database/Wordpress/Theme/sanger/vulnerability/wordpress-sanger-theme-1-24-0-local-file-inclusion-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Check for Sanger theme updates. 4. Update to latest version. 5. If no update available, switch to different theme.

🔧 Temporary Workarounds

Disable Sanger Theme

all

Switch to a different WordPress theme to remove vulnerable code.

WordPress Admin > Appearance > Themes > Activate alternative theme

Web Application Firewall Rule

linux

Block requests containing file inclusion patterns in theme paths.

WAF specific - block patterns like */sanger/*.php?file=../../
ModSecurity: SecRule ARGS "\.\./" "id:1001,phase:2,deny"

🧯 If You Can't Patch

  • Implement strict file permission controls on web server directories
  • Deploy web application firewall with file inclusion attack detection rules

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Appearance > Themes for Sanger theme version. If version is 1.24.0 or lower, system is vulnerable.

Check Version:

WordPress: wp theme list --field=name,version | grep sanger OR check wp-content/themes/sanger/style.css Version header

Verify Fix Applied:

Verify Sanger theme version is higher than 1.24.0 or theme is deactivated.

📡 Detection & Monitoring

Log Indicators:

  • HTTP requests to sanger theme files with file= parameter
  • PHP include/require errors in web server logs
  • Unusual file access patterns in theme directory

Network Indicators:

  • HTTP requests containing path traversal sequences (../) targeting theme files
  • Unexpected file downloads from theme paths

SIEM Query:

source="web_logs" AND (uri_path="*sanger*" AND query_string="*file=*" AND (query_string="*../*" OR query_string="*/../*"))

🔗 References

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