Vulnerability in Kimai
CVE-2026-40486
Kimai is an open-source time tracking application. In versions 2.52.0 and below, the User Preferences API endpoint (PATCH /api/users/{id}/preferences) applies submitted preference values without checking the isEnabled() flag on preference…
Vulnerability class: Mass Assignment
EPSS: 0.003 (18.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Kimai — versions < 2.53.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-40486?
- CVE-2026-40486 is a medium-severity vulnerability in Kimai, classified under Improperly Controlled Modification of Dynamically-Determined Object Attributes. CVSS score: 4.3/10. Published 2026-04-17.
- How severe is CVE-2026-40486?
- Medium severity. CVSS v3 base score is 4.3 out of 10.