CVE-2026-25332: Endless Posts Navigation Auth Bypass Flaw

CVE-2026-25332 Overview

A Missing Authorization vulnerability has been identified in the Endless Posts Navigation WordPress plugin developed by Fahad Mahmood. This broken access control vulnerability allows unauthenticated attackers to exploit incorrectly configured access control security levels, potentially enabling unauthorized actions within the affected WordPress installations.

Critical Impact
Unauthenticated attackers can bypass authorization checks to perform unauthorized operations due to missing permission validation in the Endless Posts Navigation plugin.

Affected Products

Endless Posts Navigation plugin versions up to and including 2.2.9
WordPress installations running vulnerable versions of the endless-posts-navigation plugin

Discovery Timeline

2026-02-19 - CVE-2026-25332 published to NVD
2026-02-19 - Last updated in NVD database

Technical Details for CVE-2026-25332

Vulnerability Analysis

This vulnerability is classified as CWE-862 (Missing Authorization), which occurs when a software component fails to perform authorization checks before allowing access to sensitive functionality or resources. In the context of the Endless Posts Navigation plugin, the application does not properly verify that the requesting user has appropriate permissions before executing certain operations.

The network-accessible nature of this vulnerability means that remote attackers can exploit it without requiring any prior authentication to the target WordPress installation. While the integrity impact is limited, successful exploitation could allow attackers to modify certain plugin settings or functionality that should be restricted to authenticated administrators.

Root Cause

The root cause of CVE-2026-25332 lies in the absence of proper authorization checks within the plugin's code paths. WordPress plugins are expected to use capability checks (such as current_user_can()) to verify user permissions before executing privileged operations. The Endless Posts Navigation plugin fails to implement these authorization controls on certain endpoints or AJAX handlers, allowing any visitor to invoke functionality that should require administrative privileges.

Attack Vector

The attack vector is network-based, allowing remote exploitation without authentication. An attacker can craft malicious requests directly to the vulnerable WordPress installation. The attack requires no user interaction and presents a low complexity barrier to exploitation.

The vulnerability enables attackers to bypass access control security levels by sending crafted HTTP requests to the plugin's endpoints. Since no authentication is required, attackers can enumerate and manipulate plugin functionality from any network location with access to the target WordPress site.

Detection Methods for CVE-2026-25332

Indicators of Compromise

Unexpected changes to Endless Posts Navigation plugin settings without administrator action
Unusual HTTP requests targeting plugin-specific AJAX endpoints from unauthenticated sources
Web server logs showing repeated requests to wp-admin/admin-ajax.php with plugin-related action parameters from suspicious IP addresses

Detection Strategies

Monitor WordPress access logs for requests to admin-ajax.php endpoints associated with the endless-posts-navigation plugin from unauthenticated sessions
Implement Web Application Firewall (WAF) rules to detect and block unauthorized access attempts to plugin functionality
Review plugin configuration changes in WordPress audit logs for unauthorized modifications

Monitoring Recommendations

Enable comprehensive logging for WordPress AJAX requests and plugin activities
Set up alerts for configuration changes to the Endless Posts Navigation plugin settings
Monitor for patterns of reconnaissance activity targeting WordPress plugin endpoints

How to Mitigate CVE-2026-25332

Immediate Actions Required

Update the Endless Posts Navigation plugin to a patched version when available from the vendor
Temporarily disable the Endless Posts Navigation plugin if no patch is available and the functionality is not critical
Implement WAF rules to restrict access to plugin AJAX endpoints
Review WordPress user accounts and plugin settings for any unauthorized changes

Patch Information

Consult the Patchstack Vulnerability Report for the latest patch information and remediation guidance. Organizations should update to a version newer than 2.2.9 once a security fix is released by the plugin author.

Workarounds

Disable the Endless Posts Navigation plugin until a patched version is available
Restrict access to WordPress admin-ajax.php endpoints at the web server level using IP whitelisting
Implement additional authentication layers through security plugins that enforce capability checks on AJAX handlers
Use a Web Application Firewall to filter and monitor requests to plugin-specific endpoints

bash

# Example Apache .htaccess rule to restrict admin-ajax.php access
# Add to WordPress root .htaccess file
<Files admin-ajax.php>
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Files>