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Bitrix24 <= 25.100.300 (Translate Module) Remote Code Execution Vulnerability
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[-] Software Link:

https://www.bitrix24.com


[-] Affected Versions:

Version 25.100.300 and prior versions.


[-] Vulnerability Description:

The vulnerability is located within the "Translate Module", which
allows users to upload and extract archive files into a temporary
directory. However, the application fails to properly verify the
contents of these archives before extracting them. This can be
exploited by malicious users to upload and execute arbitrary PHP code
by including a PHP file along with a specially crafted .htaccess file
within the archive.

Successful exploitation of this vulnerability requires an account with
"SOURCE" and "WRITE" permissions for the "Translate Module".


[-] Proof of Concept:

https://karmainsecurity.com/pocs/CVE-2025-67886.php


[-] Solution:

No official solution is currently available.


[-] Disclosure Timeline:

[22/10/2025] - Vendor notified, no response
[03/11/2025] - Vendor contacted again, no response
[12/11/2025] - CVE identifier requested
[12/12/2025] - CVE identifier assigned
[15/12/2025] - Public disclosure


[-] CVE Reference:

The Common Vulnerabilities and Exposures program (cve.org) has
assigned the name CVE-2025-67886 to this vulnerability.


[-] Credits:

Vulnerability discovered by Egidio Romano.


[-] Original Advisory:

http://karmainsecurity.com/KIS-2025-07
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Current thread:

• [KIS-2025-07] Bitrix24 <= 25.100.300 (Translate Module) Remote Code Execution Vulnerability Egidio Romano (Dec 15)