What’s Vulnerable › Vulnerabilities

CVE-2026-64827: Telenia TVox 26.5.3 Authentication Bypass via set_env.php

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-03 · updated 2026-10-23
• Weakness: CWE-807

Description

Telenia Software TVox 26.5.3 and prior 26.x versions, and 24.9.21 and prior 24.x versions, contain an authentication bypass vulnerability in set_env.php where the redirectToLoginAdminIRequestHaveAccessToken() function derives the current page name from PHP_SELF and skips authentication when the value matches 'login_admin.php'. Attackers can append '/login_admin.php' to the path of any target PHP script to cause the authentication check to pass and gain unauthenticated access to all PHP scripts under the manager HTML directory.

Affected products

• Telenia Software TVox: from 26.0.0 through 26.5.3; from 24.0.0 through 24.9.21

References

• https://karmainsecurity.com/KIS-2026-14
• https://www.teleniasoftware.com/
• https://www.vulncheck.com/advisories/telenia-tvox-authentication-bypass-via-set-env-php
• http://seclists.org/fulldisclosure/2026/Aug/30

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