{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-11839: Arbitrary File Upload in Basarsoft's Rotaban","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-11839","status":"final","version":"1","initial_release_date":"2026-06-11T14:30:50.078Z","current_release_date":"2026-06-11T16:03:58.575Z","revision_history":[{"date":"2026-06-11T14:30:50.078Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"Unrestricted upload of file with dangerous type vulnerability in Başarsoft Information Technologies Inc. Rotaban allows Upload a Web Shell to a Web Server.\n\nThis issue affects Rotaban: from V2026.06.002 before V2026.06.003.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-11839 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-11839"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-11839"},{"category":"external","summary":"siberguvenlik.gov.tr","url":"https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0367"}]},"product_tree":{"branches":[{"category":"vendor","name":"Başarsoft Information Technologies Inc.","branches":[{"category":"product_name","name":"Rotaban","branches":[{"category":"product_version_range","name":">=V2026.06.002 <V2026.06.003","product":{"name":"Başarsoft Information Technologies Inc. Rotaban >=V2026.06.002 <V2026.06.003","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:başarsoft_information_technologies_inc.:rotaban:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-11839","title":"Arbitrary File Upload in Basarsoft's Rotaban","notes":[{"category":"description","text":"Unrestricted upload of file with dangerous type vulnerability in Başarsoft Information Technologies Inc. Rotaban allows Upload a Web Shell to a Web Server.\n\nThis issue affects Rotaban: from V2026.06.002 before V2026.06.003.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","baseScore":9.9,"baseSeverity":"CRITICAL"},"products":["CSAFPID-1"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: V2026.06.003.","product_ids":["CSAFPID-1"]}]}]}