What is CVE-2023-53957?

CVE-2023-53957 is a critical-severity vulnerability in Kimai, classified under CWE-1275. CVSS score: 9.8/10. Published 2025-12-19.

How severe is CVE-2023-53957?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Kimai

CVE-2023-53957

Kimai 1.30.10 contains a SameSite cookie vulnerability that allows attackers to steal user session cookies through malicious exploitation. Attackers can trick victims into executing a crafted PHP script that captures and writes session coo…

EPSS: 0.001 (34.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Kimai — versions 1.30.10

Weakness classification (CWE)

CWE-1275

References

ExploitDB-51278 (exploit)
Official Product Homepage (product)
VulnCheck Advisory: Kimai 1.30.10 SameSite Cookie Vulnerability Session Hijacking (third-party-advisory)

Frequently asked questions

What is CVE-2023-53957?: CVE-2023-53957 is a critical-severity vulnerability in Kimai, classified under CWE-1275. CVSS score: 9.8/10. Published 2025-12-19.
How severe is CVE-2023-53957?: Critical severity. CVSS v3 base score is 9.8 out of 10.