High severity · published Dec 19, 2025
CVE-2023-53957
Kimai 1.30.10 SameSite Cookie Vulnerability Session Hijacking
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KI
Kimai · Kimai
1.30.10 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-53957
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-53957
exploit
https://www.exploit-db.com/exploits/51278
product
https://github.com/kimai/kimai/releases/tag/1.30.10
third-party-advisory
https://www.vulncheck.com/advisories/kimai-samesite-cookie-vulnerability-session-hijacking
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