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Cyber Security
Independent · Digital
Thehackingpost
CybersecurityAI-assisted

PoC Released for Atarim Plugin Auth Bypass Vulnerability

A security vulnerability has been identified in the Atarim WordPress plugin, which may allow unauthorized access to sensitive user data and system configuration. The issue, identified as CVE-2025-60188, involves an authentication bypass due to insecure…

A security vulnerability has been identified in the Atarim WordPress plugin, which may allow unauthorized access to sensitive user data and system configuration. The issue, identified as CVE-2025-60188, involves an authentication bypass due to insecure HMAC-based authentication.

CVE ID: CVE-2025-60188 GHSA ID: GHSA-648j-fchv-3hrv Vulnerability Type: Authentication Bypass via HMAC Forgery

The vulnerability arises from improper validation of administrative requests within the Atarim plugin. The plugin employs HMAC-SHA256 signatures for securing AJAX endpoints; however, the secret key used for these signatures is publicly accessible.

The secret key, an internal ID (site_id), is utilized for signing requests to administrative AJAX actions. This key is exposed through a public REST API endpoint, enabling attackers to retrieve it easily.

The issue, identified as CVE-2025-60188, involves an authentication bypass due to insecure HMAC-based authentication.
Joseph Cain · Thehackingpost

Once the site_id is retrieved, attackers can locally generate valid request signatures, granting access to protected administrative functions. This includes exposure of personally identifiable information (PII) such as names, email addresses, and user roles, in addition to system settings that may contain license keys.

The attack can be executed without user interaction, making it accessible to any unauthenticated visitor. The availability of a public Python exploit further exacerbates the risk, allowing attackers to forge signatures and extract sensitive data rapidly.

Website administrators should update the Atarim plugin to the latest version immediately. Plugin developers are advised to enhance security measures by utilizing high-entropy secrets and implementing constant-time comparison for signature validation to mitigate timing attacks.

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Security teams should conduct an audit of their WordPress installations for the presence of the Atarim plugin and prioritize patching due to the availability of exploit code and ease of exploitation.

Based on reporting by GBHackers.

AI transparency. This article was produced with the assistance of artificial intelligence and published under human editorial oversight. AI systems can make mistakes. Read how we use AI (EU AI Act, Art. 50).
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