CVE-2026-11839 CRITICAL

CVE-2026-11839: Arbitrary File Upload in Basarsoft's Rotaban

Vendor Başarsoft Information Technologies Inc.
Product Rotaban
Weakness CWE-434 · Unrestricted file upload
Published June 11, 2026
Last update June 11, 2026
View on NVD All CVEs

CVSS base score

9.9/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Unrestricted upload of file with dangerous type vulnerability in Başarsoft Information Technologies Inc. Rotaban allows Upload a Web Shell to a Web Server. This issue affects Rotaban: from V2026.06.002 before V2026.06.003.

Key dates

02Disclosure timeline

June 11, 2026 CVE published
June 11, 2026 Record updated