What is the CVSS score of CVE-2021-3957?

CVE-2021-3957 has a CVSS 3.1 base score of 4.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N. EPSS exploitation probability: 0.4%.

Is there a public PoC exploit available for CVE-2021-3957?

Yes, a public proof-of-concept exploit is available for CVE-2021-3957. Prioritise patching immediately. EPSS: 0.4%.

Is there a patch available for CVE-2021-3957?

Yes, a patch is available for CVE-2021-3957. Update the affected software to the latest version immediately.

Kimai 2 CVE-2021-3957

MEDIUM

Cross-Site Request Forgery (CSRF) (CWE-352)

2021-11-19 security@huntr.dev

CSRF Kimai 2

4.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/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

None

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Nov 19, 2021 - 12:15 nvd

MEDIUM 4.3

DescriptionNVD

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

AnalysisAI

kimai2 is vulnerable to Cross-Site Request Forgery (CSRF). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Cross-Site Request Forgery (CSRF) (CWE-352), which allows attackers to trick authenticated users into performing unintended actions. Affected products include: Kimai Kimai 2.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement anti-CSRF tokens, validate Origin/Referer headers, use SameSite cookie attribute.