Auth bypass in Wekan Project
CVE-2025-65782
An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16. Authorization flaw in card update handling allows board members (and potentially other authenticated users) to add/remove arbitrary user IDs in vote.positive / vote.negative arrays, enabling vote forgery and unauthorized voting.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (16.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
Weakness classification (CWE)
References
- github.com/wekan/wekan (Product)
- wekan.fi/hall-of-fame/spacebleed/ (Vendor Advisory)
- github.com/wekan/wekan/blob/main/CHANGELOG.md (Release Notes)
- github.com/wekan/wekan/commit/0a1a075f3153e71d9a858576f1c68d2925230d9c (Patch)
Frequently asked questions
- What is CVE-2025-65782?
- CVE-2025-65782 is a medium-severity vulnerability in Wekan Project, classified under Improper Authorization. CVSS score: 6.5/10. Published 2025-12-15.
- How severe is CVE-2025-65782?
- Medium severity. CVSS v3 base score is 6.5 out of 10.