CVE-2026-24579: WP AI Image Alt Text Auth Bypass Flaw

CVE-2026-24579 Overview

A Missing Authorization vulnerability has been identified in the WP Messiah Ai Image Alt Text Generator for WP WordPress plugin (ai-image-alt-text-generator-for-wp). This security flaw allows attackers to exploit incorrectly configured access control security levels, potentially enabling unauthorized access to plugin functionality that should be restricted to privileged users.

The vulnerability stems from inadequate authorization checks within the plugin, classified as CWE-862 (Missing Authorization). Authenticated attackers with minimal privileges can potentially access features or data intended only for administrators or other higher-privileged users.

Critical Impact

Authenticated users with low-level privileges can bypass access controls and potentially access sensitive plugin functionality, leading to information disclosure.

Affected Products

• Ai Image Alt Text Generator for WP versions up to and including 1.1.9
• WordPress installations running the affected plugin versions
• Sites using the ai-image-alt-text-generator-for-wp plugin slug

Discovery Timeline

• 2026-01-23 - CVE CVE-2026-24579 published to NVD
• 2026-01-26 - Last updated in NVD database

Technical Details for CVE-2026-24579

Vulnerability Analysis

This vulnerability represents a Broken Access Control flaw where the plugin fails to properly verify user permissions before allowing access to certain functionality. In WordPress plugin development, proper authorization requires implementing capability checks (such as current_user_can()) on all sensitive operations.

The absence of these authorization checks means that authenticated users—even those with subscriber-level privileges—may be able to invoke plugin functions that should be restricted to administrators. This type of vulnerability can lead to unauthorized information disclosure, as low-privileged users gain access to data or configuration options beyond their intended scope.

The network-based attack vector with low complexity and requiring only low privileges makes this vulnerability relatively easy to exploit for any authenticated user on an affected WordPress site.

Root Cause

The root cause of CVE-2026-24579 is the absence of proper authorization checks within the plugin's code paths. WordPress plugins must explicitly verify user capabilities before executing privileged operations. When these checks are missing or improperly implemented, the access control model breaks down.

Specifically, the plugin likely fails to implement proper nonce verification combined with capability checks on AJAX handlers or other endpoints, allowing any authenticated user to invoke functionality regardless of their assigned role.

Attack Vector

The attack can be executed remotely over the network by any authenticated WordPress user. The attacker would need to:

1. Obtain valid authentication credentials for the target WordPress site (even a basic subscriber account)
2. Identify the vulnerable endpoints or AJAX actions within the plugin
3. Craft requests to access restricted functionality without proper authorization
4. Potentially extract sensitive information or manipulate plugin settings

Since no public exploit code is currently available and this vulnerability is not listed in CISA's Known Exploited Vulnerabilities catalog, exploitation in the wild has not been confirmed. However, the technical barrier to exploitation remains low for authenticated attackers.

For technical details on the vulnerability mechanism, refer to the Patchstack Vulnerability Report.

Detection Methods for CVE-2026-24579

Indicators of Compromise

• Unexpected access to plugin settings pages by non-administrator users
• Unusual patterns in WordPress access logs showing subscriber or contributor accounts accessing plugin endpoints
• Database changes to plugin options made by low-privileged user accounts
• Anomalous AJAX requests to ai-image-alt-text-generator-for-wp related actions from unexpected user roles

Detection Strategies

• Monitor WordPress audit logs for unauthorized access attempts to plugin functionality
• Implement user activity logging to track which users access administrative features
• Review web server access logs for requests to plugin-specific endpoints from non-admin sessions
• Deploy Web Application Firewall (WAF) rules to detect broken access control patterns

Monitoring Recommendations

• Enable comprehensive WordPress activity logging using security plugins
• Configure alerts for unauthorized administrative action attempts
• Regularly audit user roles and permissions on WordPress installations
• Monitor for bulk or automated requests targeting plugin endpoints

How to Mitigate CVE-2026-24579

Immediate Actions Required

• Update the Ai Image Alt Text Generator for WP plugin to a patched version when available
• Review and restrict user account privileges to the minimum necessary for their roles
• Audit existing subscriber and contributor accounts for legitimacy
• Consider temporarily deactivating the plugin if a patch is not yet available and the functionality is not critical

Patch Information

As of the last update on 2026-01-26, organizations should monitor for security updates from the plugin vendor. Check the Patchstack Vulnerability Report for the latest remediation guidance and patch availability.

Ensure automatic updates are enabled for WordPress plugins or establish a process for promptly applying security patches when released.

Workarounds

• Temporarily deactivate the ai-image-alt-text-generator-for-wp plugin until a patched version is available
• Restrict user registration on WordPress sites running the vulnerable plugin to reduce attack surface
• Implement additional access controls at the web server level to restrict plugin endpoint access
• Use a WordPress security plugin with virtual patching capabilities to mitigate the vulnerability

# WordPress CLI command to deactivate the vulnerable plugin
wp plugin deactivate ai-image-alt-text-generator-for-wp

# Verify plugin status
wp plugin status ai-image-alt-text-generator-for-wp

# Check for available plugin updates
wp plugin update --all --dry-run