Description

Unauthenticated Broken Authentication in Ezoic <= 2.22.11 versions.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.5",
  "pubDate": "2026-08-18T15:16:53.210Z",
  "pubdate": "2026-08-18T15:16:53.210Z",
  "executiveSummary": "An unauthenticated broken authentication vulnerability has been identified in Ezoic versions up to 2.22.11. This security flaw introduces critical risk implications by allowing unauthenticated malicious actors to bypass standard session validation mechanisms, potentially leading to unauthorized access, privilege escalation, and full compromise of affected systems.\nThe vulnerability affects the Ezoic product across all deployments utilizing version 2.22.11 or earlier. Exploitation of this flaw requires network access to the vulnerable application endpoint, but does not necessitate prior authentication or specialized user interaction on the part of the victim.\nThe potential impact includes complete loss of confidentiality, integrity, and availability of the underlying web application and associated user accounts. Threat actors can leverage this broken authentication state to execute administrative actions, manipulate web content, or harvest sensitive data without valid credentials.",
  "technicalDetails": "The root cause of the vulnerability stems from improper implementation or complete absence of session verification and token validation routines within the authentication handling logic of Ezoic versions <= 2.22.11. The vulnerable component fails to adequately authenticate incoming requests, allowing arbitrary bypass of security boundaries.\nThe vulnerability is exposed over the network via HTTP/HTTPS protocols, presenting a direct attack vector to remote, unauthenticated adversaries. Due to the lack of strict privilege requirements and authentication prerequisites, an attacker can directly target exposed endpoints without needing pre-existing valid user sessions or administrative privileges.\nThe attack flow proceeds as follows: First, the attacker identifies the target web application running a vulnerable version of Ezoic. Second, the attacker transmits crafted HTTP requests targeting authentication or session management functions, omitting valid credentials or tokens while exploiting flaws in the logic handling state validation. Third, the application incorrectly evaluates the incoming request as legitimate or authorized, granting the attacker access to privileged functionalities or administrative contexts.\nDuring payload behavior execution, the lack of robust assertion checks allows unauthorized API calls or page accesses to succeed. Post-exploitation impact encompasses unauthorized data exfiltration, modification of system configurations, injection of malicious scripts, and complete administrative takeover of the affected web application instance."
}