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CVE-2023-53957

30
FAUCET Score

CVE-2023-53957 is a high-severity SameSite cookie vulnerability affecting Kimai 1.30.10. This flaw allows attackers to steal user session cookies by tricking victims into executing a crafted PHP script, leading to potential session hijacking. With a CVSS score of 8.8, the vulnerability has a low attack complexity and can result in high impacts to confidentiality, integrity, and availability. While no active exploitation or public exploit code has been identified, and community discussion is minimal, its high FAUCET Risk Score of 92/100 indicates significant potential risk.

Impacted Technologies

VendorProductVersion(s)CPE
1.30.10CPE matchmatch criteria
cpe:2.3:a:kimai:kimai:1.30.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.5HIGH

CVSS: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

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0050 is in the 42nd percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Vendor Advisories (1)

composerGHSA-cv8h-r7r5-vwj9high

Kimai contains a SameSite cookie vulnerability

Dec 19, 2025

References

github.com / kimai/kimai/releases/tag/1.30.10
ProductRelease Notes
exploit-db.com / exploits/51278
ExploitThird Party AdvisoryVDB Entry
vulncheck.com / advisories/kimai-samesite-cookie-vulnerability-session-hijacking
Third Party Advisory