CVE-2026-25367: CitiLights Auth Bypass Vulnerability

CVE-2026-25367 Overview

A Missing Authorization vulnerability (CWE-862) has been identified in the NooTheme CitiLights WordPress theme (noo-citilights). This security flaw allows attackers to exploit incorrectly configured access control security levels, potentially enabling unauthorized actions on affected WordPress installations.

Critical Impact

Unauthenticated attackers can bypass access controls to perform unauthorized modifications on WordPress sites running vulnerable versions of the CitiLights theme.

Affected Products

• NooTheme CitiLights WordPress Theme versions prior to 3.7.2
• WordPress installations using the noo-citilights theme

Discovery Timeline

• 2026-02-19 - CVE-2026-25367 published to NVD
• 2026-02-19 - Last updated in NVD database

Technical Details for CVE-2026-25367

Vulnerability Analysis

This vulnerability stems from missing authorization checks within the CitiLights WordPress theme. The theme fails to properly validate user permissions before allowing certain actions, creating a broken access control condition. Attackers exploiting this flaw can perform actions typically reserved for authenticated or privileged users without proper authentication or authorization verification.

The vulnerability is accessible over the network without requiring any authentication or user interaction, making it relatively straightforward to exploit. While the impact is limited to integrity modifications (no direct confidentiality breach or denial of service), unauthorized changes to WordPress content or settings could have significant consequences for site owners.

Root Cause

The root cause is improper implementation of authorization checks (CWE-862: Missing Authorization) in the CitiLights theme. The theme exposes functionality without validating whether the requesting user has appropriate permissions to perform the requested action. This type of broken access control vulnerability is common in WordPress themes and plugins that fail to implement proper capability checks before executing privileged operations.

Attack Vector

The attack vector is network-based, requiring no authentication credentials or user interaction. An attacker can send specially crafted requests directly to the vulnerable WordPress installation to exploit the missing authorization checks. The low attack complexity means that exploitation does not require specialized conditions or extensive preparation.

The vulnerability allows modifications to be made without proper authorization verification, though it does not directly expose sensitive data or cause service disruption. Attackers could potentially modify theme settings, content, or other configurable elements depending on which specific functionality lacks proper authorization controls.

Detection Methods for CVE-2026-25367

Indicators of Compromise

• Unexpected modifications to WordPress theme settings or site content
• Unusual HTTP requests targeting CitiLights theme endpoints from unauthenticated sources
• Log entries showing theme-related actions performed without corresponding authenticated user sessions

Detection Strategies

• Review WordPress access logs for requests to CitiLights theme endpoints that lack authenticated session tokens
• Monitor for unauthorized changes to theme configurations or site settings
• Implement web application firewall (WAF) rules to detect and block suspicious requests targeting known vulnerable theme endpoints

Monitoring Recommendations

• Enable detailed WordPress logging to capture all theme-related actions and their authentication status
• Set up alerts for configuration changes made outside of normal administrative workflows
• Regularly audit WordPress theme files and settings for unauthorized modifications

How to Mitigate CVE-2026-25367

Immediate Actions Required

• Update the NooTheme CitiLights theme to version 3.7.2 or later immediately
• Review recent site modifications for any unauthorized changes that may have occurred prior to patching
• Consider temporarily disabling the theme if an immediate update is not possible

Patch Information

The vulnerability has been addressed in CitiLights theme version 3.7.2. Site administrators should update to this version or later through the WordPress admin dashboard or by manually downloading the patched theme from the vendor. For detailed information about the vulnerability and patch, refer to the Patchstack WordPress Vulnerability Report.

Workarounds

• Implement web application firewall rules to restrict access to CitiLights theme endpoints until patching is complete
• Limit access to the WordPress admin area by IP address where feasible
• Enable WordPress security plugins with access control monitoring capabilities to detect exploitation attempts

# Example: Restrict access to wp-admin and theme endpoints via .htaccess
# Add to WordPress root .htaccess file
<Files wp-login.php>
  Order Deny,Allow
  Deny from all
  Allow from YOUR.TRUSTED.IP.ADDRESS
</Files>