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Fencer Intel
medium 6.5

CVE-2021-4033 json

Cross-Site Request Forgery (CSRF) in kevinpapst/kimai2

published 4y ago modified 4mo ago also GHSA-4jwx-78vx-gm6g , EUVD-2021-2440

cvss
6.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits
0
none known

Summary

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

Patch / fix

  • packagist kevinpapst/kimai2 1.16.7
  • kevinpapst kevinpapst/kimai2 1.16.7

Is CVE-2021-4033 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/e05be1f7-d00c-4cfd-9390-ccd9d1c737b7 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
packagist kevinpapst/kimai2
<1.16.7
1.16.7

Affected products

  • kevinpapst kevinpapst/kimai2

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

References

Sources

Fencer Intel 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.