Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-3976

23
FAUCET Score

CVE-2021-3976 describes a Cross-Site Request Forgery (CSRF) vulnerability affecting Kimai 2. This medium-severity flaw (CVSS 6.5) allows an attacker to trick a user into performing unintended actions, potentially leading to unauthorized data modification (integrity impact). While the attack requires user interaction, there is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.16.2CPE matchmatch criteria
cpe:2.3:a:kimai:kimai_2:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 32nd percentile among its peer group of 26,220 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: kevinpapst/kimai2Fixed in: 1.16.2
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-427q-jp8v-ww95medium

Cross-site Scripting in kimai2

Nov 23, 2021

References

github.com / kevinpapst/kimai2/commit/b28e9c120c87222e21a238f1b03a609d6a5d506e
PatchThird Party Advisory
huntr.dev / bounties/0567048a-118c-42ec-9f94-b55533017406
ExploitIssue TrackingPatchThird Party Advisory