---
id: CVE-2023-53957
title: >-
  Kimai 1.30.10 contains a SameSite cookie vulnerability that allows attackers
  to steal user session cookies through malicious exploitation
summary: >-
  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 c…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-1275
vendor: kimai
product: kimai
affected:
  - kimai = 1.30.10
published: '2025-12-19'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T16:16:47.210'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-53957'
references:
  - url: 'https://github.com/kimai/kimai/releases/tag/1.30.10'
    label: disclosure@vulncheck.com
  - url: 'https://www.exploit-db.com/exploits/51278'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/kimai-samesite-cookie-vulnerability-session-hijacking
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2025-12-19T21:36:13.015775Z'
epss: 0.00592
epssPercentile: 0.46622
ingestedAt: '2026-10-08T16:52:14.667Z'
---

## Overview

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.

## Affected

- `kimai = 1.30.10`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.