CVE-2026-110230

Medium

Description

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 MediaController::createVanity() to break existing share links and hijack the freed codes with their own uploads.

SeverityMedium

CVSS5.4

Exploit probability—

ProductXBackBone

PublishedOct 13, 2026

First seenOct 13, 2026

Weakness typeCWE-862Missing authorization

How to fix

Patches

github.com/sergix44/xbackbone/pull/671
github.com/sergix44/xbackbone/commit/5e91a2a9859d20e41ee2e2403cfbe673804f6221

Affected products

Product	Affected versions	Fixed in
sergix44 XBackBone	v ≤ 3.8.2	—

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