CVE-2026-11839: CWE-434 Unrestricted upload of file with dangerous type in Başarsoft Information Technologies Inc. Rotaban
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.
AI Analysis
Technical Summary
This vulnerability in Rotaban version 2026.06.002 allows an attacker with low privileges to upload files without proper restrictions on file types, including potentially dangerous files such as web shells. This can lead to remote code execution on the affected web server, compromising confidentiality, integrity, and availability. The issue is classified under CWE-434 (Unrestricted Upload of File with Dangerous Type). The vulnerability was published on June 11, 2026, and no official fix or patch is currently documented.
Potential Impact
Successful exploitation allows an attacker with low privileges to upload a web shell, resulting in complete compromise of the web server. This includes full control over the server, data breach, service disruption, and potential lateral movement within the network. The CVSS score of 9.9 reflects critical impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict file upload permissions, implement strict file type validation, and monitor for suspicious upload activity to mitigate risk.
CVE-2026-11839: CWE-434 Unrestricted upload of file with dangerous type in Başarsoft Information Technologies Inc. Rotaban
Description
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 v3.1
Score 9.9critical
Affected software
pkg:github/başarsoft-information-technologies-inc/RotabanRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Rotaban version 2026.06.002 allows an attacker with low privileges to upload files without proper restrictions on file types, including potentially dangerous files such as web shells. This can lead to remote code execution on the affected web server, compromising confidentiality, integrity, and availability. The issue is classified under CWE-434 (Unrestricted Upload of File with Dangerous Type). The vulnerability was published on June 11, 2026, and no official fix or patch is currently documented.
Potential Impact
Successful exploitation allows an attacker with low privileges to upload a web shell, resulting in complete compromise of the web server. This includes full control over the server, data breach, service disruption, and potential lateral movement within the network. The CVSS score of 9.9 reflects critical impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict file upload permissions, implement strict file type validation, and monitor for suspicious upload activity to mitigate risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TR-CERT
- Date Reserved
- 2026-06-10T06:25:02.477Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2ad481815e7002b800a883
Added to database: 6/11/2026, 3:30:09 PM
Last enriched: 6/11/2026, 3:45:16 PM
Last updated: 6/11/2026, 6:21:49 PM
Views: 5
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