CVE-2025-30639: IDonatePro Auth Bypass Vulnerability

CVE-2025-30639 Overview

CVE-2025-30639 is a Missing Authorization vulnerability [CWE-862] affecting the ThemeAtelier IDonatePro WordPress plugin. The flaw stems from incorrectly configured access control security levels, allowing unauthenticated attackers to invoke plugin functionality that should require elevated privileges. The issue affects all versions of IDonatePro up to and including 2.1.9. Successful exploitation lets remote attackers modify plugin state or data without supplying credentials, threatening the integrity of WordPress sites that run the donation plugin.

Critical Impact

Unauthenticated network-based attackers can abuse broken access control checks in IDonatePro <= 2.1.9 to perform actions reserved for authorized users, compromising the integrity of donation data and plugin configuration.

Affected Products

• ThemeAtelier IDonatePro (idonate-pro) WordPress plugin
• All versions from n/a through <= 2.1.9
• WordPress sites with IDonatePro installed and active

Discovery Timeline

• 2025-08-14 - CVE-2025-30639 published to NVD
• 2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-30639

Vulnerability Analysis

The vulnerability is a Broken Access Control issue in the IDonatePro plugin. One or more plugin endpoints fail to verify the caller's role or capability before performing privileged operations. An attacker can send crafted HTTP requests to these endpoints directly, bypassing the plugin's intended permission model.

The CWE-862 classification confirms that an authorization check is entirely absent rather than incorrectly implemented. The attack requires no user interaction, no authentication, and low complexity, making it suitable for opportunistic scanning of WordPress sites.

The impact is constrained to integrity. Attackers can modify plugin data or trigger administrative-style actions, but the vulnerability does not expose confidential information or directly crash the host.

Root Cause

The root cause is the absence of capability checks such as current_user_can() or proper nonce validation on plugin AJAX or REST endpoints. Without these checks, WordPress passes any inbound request to the handler regardless of session state. This pattern is common in plugins that rely on client-side UI restrictions instead of server-side enforcement.

Attack Vector

An unauthenticated attacker sends an HTTP request to the vulnerable endpoint exposed by IDonatePro, typically through wp-admin/admin-ajax.php or a custom REST route. Because the handler executes without verifying the caller, the requested action completes successfully. See the Patchstack Vulnerability Analysis for endpoint-level technical details.

Detection Methods for CVE-2025-30639

Indicators of Compromise

• Unauthenticated POST requests to /wp-admin/admin-ajax.php referencing IDonatePro action names
• Unexpected modifications to donation records, campaigns, or plugin settings in the WordPress database
• Web server access logs showing repeated requests to IDonatePro endpoints from non-authenticated sessions
• New or modified entries in wp_options or plugin-specific tables without corresponding admin login activity

Detection Strategies

• Inspect WordPress access logs for requests targeting admin-ajax.php with action parameters tied to IDonatePro and no valid session cookie
• Audit the plugin's PHP handlers for missing current_user_can() or check_ajax_referer() calls
• Compare current donation and configuration data against trusted backups to detect unauthorized changes

Monitoring Recommendations

• Enable WordPress audit logging to record plugin-level actions and authentication state for each request
• Forward web server and application logs to a centralized SIEM and alert on anomalous IDonatePro endpoint usage
• Monitor outbound traffic from the WordPress host for indicators of secondary compromise following exploitation

How to Mitigate CVE-2025-30639

Immediate Actions Required

• Identify all WordPress sites running ThemeAtelier IDonatePro and confirm the installed version
• Deactivate IDonatePro on sites running version 2.1.9 or earlier until a patched release is verified
• Restrict access to wp-admin/admin-ajax.php and plugin REST endpoints via Web Application Firewall (WAF) rules where feasible
• Review donation records and plugin configuration for unauthorized changes since the plugin was installed

Patch Information

At the time of publication, no vendor-confirmed fixed version is referenced in the NVD entry. Administrators should consult the Patchstack Vulnerability Analysis and the ThemeAtelier vendor channel for the latest patched release and upgrade guidance.

Workarounds

• Disable the IDonatePro plugin until an updated version with proper authorization checks is available
• Apply WAF rules that block unauthenticated requests to known IDonatePro AJAX or REST actions
• Restrict access to the WordPress admin interface to trusted IP ranges using server-level controls

# Configuration example: WAF rule pattern to block unauthenticated
# requests to known plugin AJAX actions (adapt to your WAF syntax)
SecRule REQUEST_URI "@contains /wp-admin/admin-ajax.php" \
  "chain,deny,status:403,id:1009001,msg:'Block IDonatePro unauth action'"
SecRule ARGS:action "@rx ^(idonate|idonatepro)_" \
  "chain"
SecRule &REQUEST_COOKIES:/wordpress_logged_in_/ "@eq 0"