An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16.

published 2025-12-15 10 mo ago modified 2026-10-14 26 d ago also EUVD-2025-203371

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 18%
public exploits: 0; none known

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.

Patch / fix

links 1

github.com/wekan/wekan@0a1a075 commit

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 10 mo ago (2025-12-16)

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Classification

Weakness

CWE-285 Improper Authorization

References

github.com /wekan/wekan/commit/0a1a075f3153e71d9a858576f1c68d2925230d9c
patch
wekan.fi /hall-of-fame/spacebleed/
vendor-advisory
github.com /wekan/wekan
product
github.com /wekan/wekan/blob/main/CHANGELOG.md#v816-2025-11-02-wekan--release
release-notes

Sources

CVE List CVE-2025-65782
NVD CVE-2025-65782

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary