CVE-2025-26944: JetPopup Auth Bypass Vulnerability

CVE-2025-26944 Overview

CVE-2025-26944 is a Missing Authorization vulnerability (CWE-862) affecting the Crocoblock JetPopup WordPress plugin. This broken access control flaw allows attackers to access functionality not properly constrained by Access Control Lists (ACLs), potentially enabling unauthorized actions within WordPress sites using the vulnerable plugin.

Critical Impact

Unauthorized users can bypass access controls to interact with JetPopup functionality that should be restricted, potentially leading to unauthorized content manipulation or information disclosure.

Affected Products

• Crocoblock JetPopup plugin for WordPress versions through 2.0.11

Discovery Timeline

• 2025-04-15 - CVE CVE-2025-26944 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-26944

Vulnerability Analysis

This vulnerability stems from a missing authorization check in the JetPopup WordPress plugin developed by Crocoblock. The plugin fails to properly verify user permissions before allowing access to certain functionality, resulting in a broken access control condition. Attackers can exploit this weakness to access plugin features that should be restricted to authenticated or privileged users.

The vulnerability falls under CWE-862 (Missing Authorization), which occurs when a software application does not perform an authorization check when an actor attempts to access a resource or perform an action. In the context of WordPress plugins, this typically manifests when AJAX handlers, REST API endpoints, or administrative functions lack proper capability checks using functions like current_user_can().

Root Cause

The root cause is the absence of proper authorization checks within the JetPopup plugin's functionality. WordPress plugins must explicitly verify user capabilities before executing privileged operations. When these checks are missing or improperly implemented, any user—including unauthenticated visitors—may be able to invoke restricted functionality.

The plugin versions through 2.0.11 do not adequately enforce access control restrictions, allowing functionality to be accessed without proper ACL validation.

Attack Vector

The attack vector for this vulnerability involves sending crafted requests to the vulnerable plugin endpoints. An attacker can potentially:

1. Identify unprotected AJAX actions or REST API endpoints exposed by the JetPopup plugin
2. Craft HTTP requests targeting these endpoints without proper authentication
3. Execute plugin functionality that should require elevated privileges

Since no proof-of-concept code is available from verified sources, the specific exploitation technique involves making direct requests to plugin endpoints that lack authorization validation. For detailed technical analysis, refer to the Patchstack Vulnerability Report.

Detection Methods for CVE-2025-26944

Indicators of Compromise

• Unexpected or unauthorized changes to popup configurations or content within WordPress
• Unusual HTTP requests to JetPopup AJAX handlers from unauthenticated sources
• Log entries showing access to JetPopup administrative functions by non-privileged users

Detection Strategies

• Monitor WordPress access logs for requests to admin-ajax.php with JetPopup-related action parameters from suspicious or unauthenticated sources
• Implement web application firewall (WAF) rules to detect unauthorized access attempts to WordPress plugin endpoints
• Review WordPress audit logs for unexpected popup modifications or plugin setting changes

Monitoring Recommendations

• Enable detailed logging for WordPress AJAX requests and plugin activity
• Configure alerting for repeated failed authorization attempts or unusual plugin API usage patterns
• Deploy endpoint detection solutions like SentinelOne to monitor for exploitation attempts targeting WordPress installations

How to Mitigate CVE-2025-26944

Immediate Actions Required

• Update the JetPopup plugin to the latest available version that addresses this vulnerability
• Review WordPress user roles and permissions to ensure principle of least privilege
• Audit existing popup configurations for any unauthorized modifications
• Consider temporarily disabling the JetPopup plugin if an update is not immediately available

Patch Information

Users should update to a patched version of the JetPopup plugin beyond version 2.0.11. Check the WordPress plugin repository or Crocoblock's official website for the latest secure release. Additional details are available in the Patchstack Vulnerability Report.

Workarounds

• Implement a Web Application Firewall (WAF) to filter and block unauthorized requests to JetPopup endpoints
• Restrict access to WordPress admin-ajax.php from untrusted IP addresses where feasible
• Use WordPress security plugins to add additional authorization layers and monitor for suspicious activity
• Disable the JetPopup plugin temporarily until the update can be applied

# Verify current JetPopup plugin version via WP-CLI
wp plugin list --name=jet-popup --fields=name,version,status

# Update JetPopup plugin to latest version
wp plugin update jet-popup

# Alternatively, disable the plugin temporarily if update unavailable
wp plugin deactivate jet-popup