SB2026072852 - Incorrect authorization in Wekan

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Main Vulnerability Database SB2026072852

SB2026072852 - Incorrect authorization in Wekan

Published: July 28, 2026

Security Bulletin ID SB2026072852
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Incorrect authorization (CVE-ID: N/A)

CWE-ID: CWE-863 - Incorrect Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to escalate privileges and take over a private board.

The vulnerability exists due to incorrect authorization in the Boards.update allow rule for sort updates in server/permissions/boards.js and canUpdateBoardSort in server/lib/utils.js when handling crafted DDP board update requests that modify the sort field together with other board fields. A remote user can send a specially crafted DDP update request to escalate privileges and take over a private board.

The issue affects authenticated users who are already active members of the target board, including comment-only or read-only members, and can also expose a private board by changing its permission to public.


Remediation

Install update from vendor's website.

References