CVE-2025-49272: Trinity Audio Authorization Bypass Flaw

CVE-2025-49272 Overview

CVE-2025-49272 is a missing authorization vulnerability [CWE-862] in the Trinity Audio WordPress plugin developed by sergiotrinity. The flaw affects all versions up to and including 5.20.0 and stems from incorrectly configured access control security levels. Authenticated attackers with low privileges can exploit exposed plugin functionality that lacks proper capability checks. The issue impacts integrity of plugin data without requiring user interaction. Trinity Audio is a text-to-audio plugin used by WordPress publishers to convert written content into audio playback.

Critical Impact
Authenticated users with minimal privileges can invoke plugin actions that should be restricted, allowing unauthorized modification of plugin-controlled data on affected WordPress sites.

Affected Products

Trinity Audio WordPress Plugin (trinity-audio)
All versions from n/a through 5.20.0
WordPress sites using sergiotrinity Trinity Audio

Discovery Timeline

2025-06-06 - CVE-2025-49272 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-49272

Vulnerability Analysis

The vulnerability resides in the Trinity Audio plugin's handling of privileged actions. One or more plugin endpoints fail to verify that the requesting user has the necessary capability or role before executing sensitive operations. This is a classic broken access control weakness where authentication is validated but authorization is not enforced. An attacker authenticated as any low-privilege WordPress user, such as a subscriber, can send crafted requests that trigger restricted functionality. The impact is limited to integrity of plugin-managed data; confidentiality and availability are not directly affected based on the published CVSS metrics.

Root Cause

The root cause is a missing authorization check [CWE-862] in Trinity Audio through version 5.20.0. The plugin exposes AJAX handlers or REST routes that rely on nonce or authentication verification alone without a current_user_can() capability check. Because the security level is incorrectly configured, WordPress treats low-privilege sessions as authorized to perform administrative plugin operations. See the Patchstack Trinity Audio Vulnerability advisory for reference details.

Attack Vector

Exploitation requires network access to the target WordPress site and a valid low-privilege account. The attacker sends HTTP requests directly to the vulnerable plugin endpoint with parameters targeting the restricted action. No user interaction is required and no elevated privileges are needed beyond basic authentication. The vulnerability is exploitable remotely against any WordPress instance that allows user registration or where an attacker has obtained subscriber-level credentials.

No public proof-of-concept exploit code is currently available. Refer to the vendor advisory for technical specifics on the affected endpoints.

Detection Methods for CVE-2025-49272

Indicators of Compromise

Unexpected HTTP POST requests to Trinity Audio plugin AJAX endpoints under /wp-admin/admin-ajax.php originating from low-privilege user sessions.
Unauthorized modifications to Trinity Audio plugin settings, audio configurations, or associated post metadata.
Anomalous activity in WordPress audit logs tied to trinity-audio action names issued by subscriber or contributor accounts.

Detection Strategies

Deploy a web application firewall rule that inspects requests targeting trinity-audio actions and validates the requesting user's role against expected capabilities.
Enable a WordPress activity logging plugin and alert on plugin configuration changes performed by non-administrator accounts.
Baseline normal Trinity Audio request patterns and flag deviations, including unusual request volume from newly registered accounts.

Monitoring Recommendations

Monitor WordPress access logs for action=trinity_audio_* parameters correlated with non-admin session cookies.
Track user registration spikes followed shortly by requests to plugin endpoints, a common precursor to abuse of missing authorization flaws.
Forward WordPress and web server logs to a centralized analytics platform for correlation across sites and long-term retention.

How to Mitigate CVE-2025-49272

Immediate Actions Required

Update the Trinity Audio plugin to a version later than 5.20.0 as soon as the vendor publishes a patched release.
Audit existing WordPress user accounts and remove or downgrade any unknown low-privilege accounts.
Disable open user registration on WordPress sites that do not require it to reduce the attacker population.

Patch Information

Refer to the Patchstack Trinity Audio Vulnerability advisory for the current patch status. Administrators should track the plugin's changelog on the WordPress plugin repository and apply the fixed release immediately upon availability.

Workarounds

Temporarily deactivate the Trinity Audio plugin until a patched version is installed if audio functionality is non-critical.
Restrict access to /wp-admin/admin-ajax.php for Trinity Audio actions using a web application firewall or .htaccess rules that require an administrator role.
Enforce strong authentication and multi-factor authentication for all WordPress accounts to raise the bar for attackers seeking low-privilege footholds.

bash

# Example WAF rule concept to block non-admin access to Trinity Audio AJAX actions
# Adjust for your WAF syntax (ModSecurity example)
SecRule REQUEST_URI "@contains /wp-admin/admin-ajax.php" \
  "chain,phase:2,deny,status:403,id:1004901,\
   msg:'Block Trinity Audio action from non-admin session'"
SecRule ARGS:action "@rx ^trinity_audio_" \
  "chain"
SecRule REQUEST_COOKIES:/wordpress_logged_in_/ "!@rx admin"