CVE-2025-54033: Elementor Theme Builder CSRF Vulnerability

CVE-2025-54033 Overview

CVE-2025-54033 is a Cross-Site Request Forgery (CSRF) vulnerability in the BlocksWP Theme Builder For Elementor WordPress plugin. The issue affects all versions up to and including 1.2.3. The flaw is categorized under CWE-352 and stems from missing or insufficient anti-CSRF token validation on state-changing requests.

An attacker can craft a malicious web page or link that, when visited by an authenticated WordPress user, forces the victim's browser to submit forged requests to the plugin. Successful exploitation requires user interaction but no authentication on the attacker's side.

Critical Impact
An attacker can trick an authenticated user into executing unwanted actions in the plugin, resulting in high impact to data integrity within the affected WordPress site.

Affected Products

BlocksWP Theme Builder For Elementor plugin (theme-builder-for-elementor) versions through 1.2.3
WordPress sites running the vulnerable plugin with authenticated administrator or editor sessions
Any Elementor-based WordPress deployment using the affected theme builder component

Discovery Timeline

2025-07-16 - CVE-2025-54033 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-54033

Vulnerability Analysis

The vulnerability exists because the Theme Builder For Elementor plugin fails to verify the origin or authenticity of incoming HTTP requests to sensitive endpoints. WordPress provides nonce mechanisms via wp_nonce_field() and check_admin_referer() for CSRF protection, but the affected plugin does not consistently apply these controls.

An attacker hosts a malicious page containing an auto-submitting form or JavaScript request targeting the plugin's administrative endpoints. When a logged-in WordPress administrator visits the attacker-controlled page, the browser automatically attaches valid session cookies to the forged request. The plugin then processes the request as legitimate.

The attack requires user interaction (UI:R in the CVSS vector) but no attacker privileges. The impact is limited to integrity, meaning attackers can modify plugin state, templates, or configuration but cannot directly extract confidential data through this flaw.

Root Cause

The root cause is missing CSRF token validation on state-changing HTTP requests handled by the plugin. Developers omitted or incorrectly implemented WordPress nonce verification, allowing cross-origin requests to alter plugin data using the victim's session context.

Attack Vector

The attack vector is network-based and requires a victim with an active authenticated session on the target WordPress site. The attacker delivers a malicious link through phishing, forum posts, comments, or compromised third-party sites. When the victim clicks the link, the browser issues the forged request under the victim's credentials.

// No verified proof-of-concept code is publicly available.
// Refer to the Patchstack advisory for technical details:
// https://patchstack.com/database/Wordpress/Plugin/theme-builder-for-elementor

Detection Methods for CVE-2025-54033

Indicators of Compromise

Unexpected modifications to Elementor templates, theme parts, or plugin settings performed by administrator accounts outside normal working hours
HTTP POST requests to plugin endpoints with Referer headers pointing to external, untrusted domains
WordPress audit log entries showing state changes without corresponding admin panel navigation events

Detection Strategies

Inspect web server access logs for requests to plugin administrative endpoints with mismatched or missing Referer and Origin headers
Enable WordPress activity logging plugins to capture template and configuration changes with associated request metadata
Correlate authenticated user session events with unexpected outbound requests from browsers to plugin action URLs

Monitoring Recommendations

Monitor for administrator browser sessions that trigger POST requests to wp-admin endpoints immediately after visiting external URLs
Alert on modifications to Elementor theme builder configurations that lack a corresponding admin UI navigation trail
Review authentication logs for administrator activity from unusual geolocations or user agents

How to Mitigate CVE-2025-54033

Immediate Actions Required

Update the BlocksWP Theme Builder For Elementor plugin to a version later than 1.2.3 once a vendor patch is available
Audit administrator and editor accounts for unexpected changes to templates, theme parts, and plugin configuration
Enforce browser session hygiene by requiring administrators to log out of WordPress before browsing untrusted sites

Patch Information

At the time of publication, the Patchstack CSRF Vulnerability Report confirms the vulnerability affects versions through 1.2.3. Administrators should monitor the WordPress plugin repository and the Patchstack advisory for the fixed release and apply it immediately upon availability.

Workarounds

Deactivate the Theme Builder For Elementor plugin until a patched version is released if the plugin is not business-critical
Deploy a Web Application Firewall (WAF) rule that validates Origin and Referer headers on requests to plugin administrative endpoints
Restrict administrator access to dedicated management browsers or workstations that do not browse the general internet

bash

# Example WAF rule pattern (ModSecurity) to block cross-origin POSTs
# to the plugin endpoints - adapt path patterns to your deployment
SecRule REQUEST_METHOD "@streq POST" \
  "chain,phase:1,deny,status:403,id:1005401,\
   msg:'Blocked cross-origin POST to theme-builder-for-elementor'"
  SecRule REQUEST_URI "@contains theme-builder-for-elementor" "chain"
    SecRule REQUEST_HEADERS:Origin "!@beginsWith https://your-site.example"