CVE-2025-65778

moderate-risk
Published 2025-12-15

An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16. Uploaded attachments can be served with attacker-controlled Content-Type (text/html), allowing execution of attacker-supplied HTML/JS in the application's origin and enabling session/token theft and CSRF actions.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.1/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Wekan Project

References (4)

Product https://github.com/wekan/wekan
Release Notes https://github.com/wekan/wekan/blob/main/CHANGELOG.md#v816-2025-11-02-wekan--rel...
Patch https://github.com/wekan/wekan/commit/e9a727301d7b4f1689a703503df668c0f4f4cab8
Vendor Advisory https://wekan.fi/hall-of-fame/spacebleed/
33
/ 100
moderate-risk
Severity 28/34 · Critical
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal