CVE-2026-64827
Telenia TVox 26.5.3 Authentication Bypass via set_env.php
- State
- Published
- Severity
- 9.3 Critical
- Published
- Aug 3, 2026
- Updated
- Aug 7, 2026
- Reserved
- Jul 20, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-807 Reliance on Untrusted Inputs in a Security Decision
Affected Products
| Product | Versions |
|---|---|
TVoxTelenia Software |
|
References
- Karma(in)Security Disclosure (KIS-2026-14)technical-descriptionexploit
- Supplier Homepageproduct
- https://www.vulncheck.com/advisories/telenia-tvox-authentication-bypass-via-set-env-phpthird-party-advisory
- http://seclists.org/fulldisclosure/2026/Aug/30
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