Authorization bypass through user-controlled key in Wekan - #VU144214
Published: August 18, 2026
Vulnerability identifier: #VU144214
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information from arbitrary private board cards and attachment bytes.
The vulnerability exists due to authorization bypass through user-controlled key in the single-card Excel export endpoint when handling requests with an authorized board identifier and an unrelated card identifier. A remote user can send a specially crafted request to disclose sensitive information from arbitrary private board cards and attachment bytes.
The list identifier is not used in the data query, and a known card identifier is required.
Affected software
Wekan
Remediation
Install security update from vendor's website.
Wekan - update to 10.83