What is CVE-2023-46245?

CVE-2023-46245 is a high-severity vulnerability in Kimai, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 7.2/10. Published 2023-10-31.

How severe is CVE-2023-46245?

High severity. CVSS v3 base score is 7.2 out of 10.

Vulnerability in Kimai

CVE-2023-46245

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.

Published 2023-10-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (73.5th percentile), scored 2026-10-28.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Kimai — versions < 2.1.0

Weakness classification (CWE)

CWE-1336 — Improper Neutralization of Special Elements Used in a Template Engine

References

github.com/kimai/kimai/security/advisories/GHSA-fjhg-96cp-6fcw (Exploit, Vendor Advisory)
github.com/kimai/kimai/commit/38e37f1c2e91e1acb221ec5c13f11b735bd50ae4

Frequently asked questions

What is CVE-2023-46245?: CVE-2023-46245 is a high-severity vulnerability in Kimai, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 7.2/10. Published 2023-10-31.
How severe is CVE-2023-46245?: High severity. CVSS v3 base score is 7.2 out of 10.