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Vulnerability record · CVE-2023-46245 · published 31 October 2023

CVE-2023-46245: Kimai vulnerability

Kimai · Kimai

Kimai is a web-based multi-user time-tracking application. Versions prior to 2.1.0 are vulnerable to a Server-Side Template Injection (SSTI) which can be escalated to Remote Code Execution (RCE). The vulnerability arises when a malicious user uploads a specially crafted Twig file, exploiting the software's PDF and HTML rendering functionalities. Version 2.1.0 enables security measures for custom Twig templates.

7.2 CVSS 3.1 High EPSS 1.5% · top 27.4% CWE-1336 · CWE-1336
7.2CVSS 3.1 base score
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Kimai is a web-based multi-user time-tracking application. Versions prior to 2.1.0 are vulnerable to a Server-Side Template Injection (SSTI) which can be escalated to Remote Code Execution (RCE). The vulnerability arises when a malicious user uploads a specially crafted Twig file, exploiting the software's PDF and HTML rendering functionalities. Version 2.1.0 enables security measures for custom Twig templates.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/kimai/kimai/commit/38e37f1c2e91e1acb221ec5c13f11b735bd50ae4
https://github.com/kimai/kimai/security/advisories/GHSA-fjhg-96cp-6fcw ExploitVendor Advisory
https://github.com/kimai/kimai/commit/38e37f1c2e91e1acb221ec5c13f11b735bd50ae4
https://github.com/kimai/kimai/security/advisories/GHSA-fjhg-96cp-6fcw ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-46245), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.