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CVE-2023-53957

Kimai 1.30.10 SameSite Cookie Vulnerability Session Hijacking

8.5 High

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Active

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
None

Exploit likelihood

0.59%Up 0.6 points since Dec 20, 2025
90%50%10%1%

What each source reports

CVE List Score used 8.5

Kimai 1.30.10 SameSite Cookie Vulnerability Session Hijacking

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.

Record
CVE-2023-53957
CVSS 4.0
8.5 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-1275
Updated
2026-11-02
EUVDEUVD-2025-204601 8.5

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.

Record
EUVD-2025-204601
CVSS 4.0
8.5 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-cv8h-r7r5-vwj9 8.5

Kimai contains a SameSite cookie vulnerability

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.

Record
GHSA-cv8h-r7r5-vwj9
CVSS 4.0
8.5 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-1275
Updated
2026-11-02
NVD 8.5

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.

Record
CVE-2023-53957
CVSS 4.0
8.5 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-1275
Updated
2026-11-02
OSV 8.5

Kimai 1.30.10 SameSite Cookie Vulnerability Session Hijacking

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.

Record
CVE-2023-53957
CVSS 4.0
8.5 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness
CWE-1275
Updated
2026-11-02
OSVGHSA-cv8h-r7r5-vwj9 8.5

Kimai contains a SameSite cookie vulnerability

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.

Record
GHSA-cv8h-r7r5-vwj9
CVSS 4.0
8.5 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-1275
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
kimai/kimai
Packagist
through 1.30.10 None known
kimai/kimai
Packagist
through 1.30.10, plus listed versions
0.10.20.30.40.5
Show 45 moreShow less
0.60.6.10.70.80.8.10.91.01.0.11.11.101.10.11.10.21.111.11.11.121.131.141.14.11.14.21.14.31.151.15.11.15.21.15.31.15.41.15.51.15.61.161.16.11.16.101.16.21.16.31.16.41.16.51.16.61.16.71.16.81.16.91.171.17.11.181.18.11.18.21.191.19.1
None known

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-53957 is a high vulnerability (CVSS 8.5) in Kimai, published December 19, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.59%, the 48th percentile. No source names a fixed version.

References

This page doesn't list everything

Left out here: 46 versions. The JSON record has them.

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