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-2025-203372

cvss: 8.2; 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 27%
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. Attachment upload API treats the Authorization bearer value as a userId and enters a non-terminating body-handling branch for any non-empty bearer token, enabling trivial application-layer DoS and latent identity-spoofing.

Patch / fix

fixed in 1 links 1

wekan_project wekan 8.16

github.com/wekan/wekan@ccd9034 commit

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 10 mo ago (2025-12-16)

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	8.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
NVD	3.1	8.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
CNA	3.1	8.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Classification

Weakness

CWE-287 Improper Authentication
CWE-400 Uncontrolled Resource Consumption

References

github.com /wekan/wekan/commit/ccd90343394f433b287733ad0a33c08e0a71f53c
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-2025-65781
NVD CVE-2025-65781

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