CVE-2025-28992

8.1 HIGH

📋 TL;DR

This vulnerability allows attackers to include local files on the server through improper filename control in PHP include/require statements. It affects WordPress sites using the SNS Anton theme from version unknown through 4.1, potentially leading to sensitive information disclosure or code execution.

💻 Affected Systems

Products:
  • WordPress SNS Anton Theme
Versions: n/a through 4.1
Operating Systems: All operating systems running PHP
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with SNS Anton theme active. PHP configuration with allow_url_include disabled does not prevent local file inclusion.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full server compromise through local file inclusion leading to remote code execution, sensitive file disclosure (including configuration files with credentials), and complete site takeover.

🟠

Likely Case

Sensitive file disclosure (wp-config.php, /etc/passwd, etc.), partial code execution through log poisoning, or reading of database credentials leading to data breach.

🟢

If Mitigated

Limited information disclosure if file permissions are properly configured and PHP security settings restrict file access.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires no authentication and uses simple HTTP requests with file path manipulation. Public proof-of-concept exists in vulnerability database.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 4.2 or later

Vendor Advisory: https://patchstack.com/database/wordpress/theme/snsanton/vulnerability/wordpress-sns-anton-4-1-local-file-inclusion-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Check if SNS Anton theme is active. 4. Update theme to version 4.2 or later from WordPress repository. 5. If update not available, replace with alternative theme.

🔧 Temporary Workarounds

Disable vulnerable theme

all

Switch to default WordPress theme or alternative secure theme

wp theme activate twentytwentyfour

PHP configuration hardening

linux

Set open_basedir restriction and disable dangerous functions

php_admin_value open_basedir "/var/www/html:/tmp"
disable_functions = exec,passthru,shell_exec,system

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block file inclusion patterns
  • Restrict file system permissions and implement strict access controls

🔍 How to Verify

Check if Vulnerable:

Check WordPress theme version in Appearance > Themes or use: wp theme list --field=name,status,version | grep snsanton

Check Version:

wp theme list --field=name,version | grep -i anton

Verify Fix Applied:

Confirm theme version is 4.2+ and test file inclusion attempts return errors instead of file contents

📡 Detection & Monitoring

Log Indicators:

  • HTTP requests with ../ sequences, include/require parameters, attempts to access wp-config.php or /etc/passwd

Network Indicators:

  • Unusual file paths in GET/POST parameters, repeated requests with directory traversal patterns

SIEM Query:

source="web_logs" AND (uri="*../*" OR param="*include*" OR param="*require*")

🔗 References

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