CVE-2021-3976

Name: CVE-2021-3976
Creator: NVD / NIST
Published: 2021-11-19T11:15:07.88+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2021-3976 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. kimai2 is vulnerable to Cross-Site Request Forgery (CSRF). EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

kimai2 is vulnerable to Cross-Site Request Forgery (CSRF)

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.39%

30.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Kimai	Kimai 2	< 1.16.2

References

https://github.com/kevinpapst/kimai2/commit/b28e9c120c87222e21a238f1b03a609d6a5d506ePatch, Third Party Advisory
https://huntr.dev/bounties/0567048a-118c-42ec-9f94-b55533017406Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/kevinpapst/kimai2/commit/b28e9c120c87222e21a238f1b03a609d6a5d506ePatch, Third Party Advisory
https://huntr.dev/bounties/0567048a-118c-42ec-9f94-b55533017406Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Nov 19, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-3976?

kimai2 is vulnerable to Cross-Site Request Forgery (CSRF)

How severe is CVE-2021-3976?

CVE-2021-3976 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2021-3976?

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-2021-3976?

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

Scan your code now

Source: NVD / NIST