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 cookie information to a file, enabling potential session hijacking.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (48.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Kimai — versions 1.30.10
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/51278 (Exploit, VDB Entry, Third Party Advisory, exploit)
- github.com/kimai/kimai/releases/tag/1.30.10 (Product, product, Release Notes)
- www.vulncheck.com/advisories/kimai-samesite-cookie-vulnerability-session-hijack… (Third Party Advisory, 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.