CVE-2021-3983 json
Cross-site Scripting (XSS) - Stored in kevinpapst/kimai2
published 2021-12-01 4 y ago modified 2026-06-17 4 mo ago also GHSA-67c7-5v9j-227r , EUVD-2021-2456
- cvss
- 6.3
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
kimai2 is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Patch / fix
- packagist kevinpapst/kimai2 1.16.3
- kevinpapst kevinpapst/kimai2 1.16.3
Exploit prediction
0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- huntr.dev https://huntr.dev/bounties/c96f3480-dccf-4cc2-99a4-d2b3a7462413 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 6.3 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.0 | 6.3 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | kevinpapst/kimai2 | <1.16.3 |
1.16.3 |
Affected products
- kevinpapst kevinpapst/kimai2
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/kevinpapst/kimai2/commit/89bfa82c61da0d3639e4038e689e25467baac8a0
web, patch, third-party-advisory
-
huntr.dev
/bounties/c96f3480-dccf-4cc2-99a4-d2b3a7462413
web, exploit, patch, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-3983
advisory
-
github.com
/kevinpapst/kimai2
package
-
github.com
/kevinpapst/kimai2/releases/tag/1.16.3
web
Sources
- CVE List CVE-2021-3983
- GitHub Advisory GHSA-67c7-5v9j-227r
- NVD CVE-2021-3983
Fencer Vulns 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.