Description
Bitrix24 through 25.100.300 allows Remote Code Execution because an actor with SOURCE/WRITE permissions for the Translate Module can upload and execute code by sending a PHP file and a .htaccess file. NOTE: this is disputed by the Supplier because this is intended behavior for the high-privileged users who can upload new translated pages to the website.
References7
- dev.1c-bitrix.ru/api_help/translate/index.php
- dev.1c-bitrix.ru/learning/course/?COURSE_ID=43&LESSON_ID=3055
- karmainsecurity.com/pocs/CVE-2025-67886.php
- seclists.org/fulldisclosure/2025/Dec/21
- www.bitrix24.com/self-hosted/
- seclists.org/fulldisclosure/2025/Dec/21
- seclists.org/fulldisclosure/2025/Dec/21
Metrics
- CVSS 3.1
-
6.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - EPSS — exploit probability
- 1% percentile: 64 · as of 13 November 2026
- CWE
- CWE-434
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.