{"id":"CVE-2026-110230","title":"XBackBone through 3.8.2 contains a missing authorization vulnerability that allows authenticated users to change other users' upload share codes via the POST /upload/{id}/vanity route","summary":"XBackBone through 3.8.2 contains a missing authorization vulnerability that allows authenticated users to change other users' upload share codes via the POST /upload/{id}/vanity route. Attackers can supply sequential upload ids to MediaC…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","cwe":["CWE-862"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T20:17:27.987","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-110230","references":[{"url":"https://github.com/sergix44/xbackbone","label":"disclosure@vulncheck.com"},{"url":"https://github.com/sergix44/xbackbone/blob/226af4f0cec218f563da6d53ececfa4708e6f3e7/app/Controllers/MediaController.php#L204-L229","label":"disclosure@vulncheck.com"},{"url":"https://github.com/sergix44/xbackbone/commit/5e91a2a9859d20e41ee2e2403cfbe673804f6221","label":"disclosure@vulncheck.com"},{"url":"https://github.com/sergix44/xbackbone/pull/671","label":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/ByAj-Xoifl","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/xbackbone-through-3.8.2-missing-authorization-via-upload-vanity-endpoint","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"ingestedAt":"2026-10-13T19:43:28.941Z","slug":"CVE-2026-110230","body":"## Overview\n\nXBackBone through 3.8.2 contains a missing authorization vulnerability that allows authenticated users to change other users' upload share codes via the POST /upload/{id}/vanity route. Attackers can supply sequential upload ids to MediaController::createVanity() to break existing share links and hijack the freed codes with their own uploads.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}