CVE-2026-117563

Medium

Description

MrDoc through 1.1.1 contains a broken access control vulnerability in the manage_doc_share type 3 branch that allows authenticated users to modify other users' document share settings because updates lack an ownership check. Attackers can compute predictable share tokens from the MD5 of document ID and username to re-enable disabled shares or remove access codes, exposing private documents.

SeverityMedium

CVSS5.4

Exploit probability—

ProductMrDoc

PublishedOct 27, 2026

First seenOct 27, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Patches

github.com/zmister2016/MrDoc/commit/2cd13ff0659dbef9aea59d5af122a21204942262

Affected products

Product	Affected versions	Fixed in
zmister2016 MrDoc	v ≤ 1.1.1	—

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