Vulnerability · Published Oct 31, 2023 · Assigned by GitHub_M

CVE-2023-46245Kimai (Authenticated) SSTI to RCE by Uploading a Malicious Twig File

High 7.2

In plain English

A high-severity security flaw in kimai from kimai. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)1.8%top 21.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	kimai/kimai	2.1.0	GHSA-fjhg-96cp-6fcw

Affected products (as reported)

Vendor	Product	Versions
kimai	kimai	< 2.1.0

Weakness: CWE-1336 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/kimai/kimai/security/advisories/GHSA-fjhg-96cp-6fcw x_refsource_CONFIRM
https://github.com/kimai/kimai/commit/38e37f1c2e91e1acb221ec5c13f11b735bd50ae4 x_refsource_MISC