CVE-2025-65778

Name: CVE-2025-65778
Creator: NVD / NIST
Published: 2025-12-15T14:15:57.227+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2025-65778 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

EPSS Probability

0.32%

23.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Wekan Project	Wekan	< 8.16

References

https://github.com/wekan/wekanProduct
https://github.com/wekan/wekan/blob/main/CHANGELOG.md#v816-2025-11-02-wekan--releaseRelease Notes
https://github.com/wekan/wekan/commit/e9a727301d7b4f1689a703503df668c0f4f4cab8Patch
https://wekan.fi/hall-of-fame/spacebleed/Vendor Advisory

Timeline

Published: Dec 15, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-65778?

How severe is CVE-2025-65778?

CVE-2025-65778 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2025-65778?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-65778?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST