CVE-2026-64827

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.

CVSS 4.0

9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-25)

CWE

CWE-807

Published

2026-08-03

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

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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