CVE-2026-11839

Arbitrary File Upload in Basarsoft's Rotaban

CVSS 9.9 CRITICALEPSS 0.3%CWE-434

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.9EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

11 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Başarsoft Information Technologies Inc. · Rotaban

References

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