CVE-2024-12857

9.8 CRITICAL

📋 TL;DR

The AdForest WordPress theme has an authentication bypass vulnerability that allows unauthenticated attackers to log in as any user when OTP phone login is enabled. This affects all AdForest theme versions up to 5.1.8. Attackers can gain administrative access to WordPress sites using this theme.

💻 Affected Systems

Products:
  • AdForest WordPress Theme
Versions: All versions up to and including 5.1.8
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ✅ No
Notes: Only vulnerable when OTP login by phone number feature is enabled in the theme settings.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete site takeover with administrative privileges, data theft, malware injection, and defacement.

🟠

Likely Case

Unauthorized access to user accounts, privilege escalation to admin, and potential data exfiltration.

🟢

If Mitigated

Limited impact if OTP phone login is disabled or proper access controls are implemented.

🌐 Internet-Facing: HIGH - WordPress sites are internet-facing by design and vulnerable to remote exploitation.
🏢 Internal Only: LOW - This vulnerability primarily affects internet-facing WordPress installations.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploitation requires OTP phone login to be enabled but is straightforward once that condition is met.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version 5.1.9 or later

Vendor Advisory: https://themeforest.net/item/adforest-classified-wordpress-theme/19481695

Restart Required: No

Instructions:

1. Update AdForest theme to version 5.1.9 or later via WordPress admin panel. 2. Verify update completed successfully. 3. Test authentication functionality.

🔧 Temporary Workarounds

Disable OTP Phone Login

all

Disable the OTP login by phone number feature in AdForest theme settings.

Temporary Theme Deactivation

all

Switch to default WordPress theme until patch can be applied.

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block authentication bypass attempts
  • Enable strict access controls and monitor for unusual login patterns

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Appearance > Themes for AdForest theme version 5.1.8 or earlier.

Check Version:

wp theme list --field=name,version --format=csv (if WP-CLI installed)

Verify Fix Applied:

Confirm AdForest theme version is 5.1.9 or later in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed login attempts followed by successful login from same IP
  • Successful logins from unusual locations or IPs
  • User privilege escalation events

Network Indicators:

  • Unusual authentication request patterns to wp-login.php or theme-specific endpoints
  • Traffic spikes to OTP-related endpoints

SIEM Query:

source="wordpress.log" AND ("authentication failed" OR "logged in") | stats count by src_ip, user

🔗 References

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