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Description
1C-Bitrix through 25.100.500 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.
References
seclists.org/fulldisclosure/2025/Dec/22
www.1c-bitrix.ru/support/index.php
dev.1c-bitrix.ru/...ning/course/?COURSE_ID=43&LESSON_ID=3055
dev.1c-bitrix.ru/api_help/translate/index.php
seclists.org/fulldisclosure/2025/Dec/22
karmainsecurity.com/pocs/CVE-2025-67887.php