CVE-2026-11839 PUBLISHED

Arbitrary File Upload in Basarsoft's Rotaban

Assigner: TR-CERT
Reserved: 10.06.2026 Published: 11.06.2026 Updated: 11.06.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9.9

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Başarsoft Information Technologies Inc.
Product	Rotaban
Versions	Default: unaffected affected from V2026.06.002 to V2026.06.003 (excl.)

Credits

Mehmet MURAT finder

References

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0367

Problem Types

CWE-434 Unrestricted upload of file with dangerous type CWE

Impacts

CAPEC-650 Upload a Web Shell to a Web Server