CVEvulnerability

CVE-2021-39181

8.8 HIGH Published 2021-09-01 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-09-01
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:P
Weaknesses
CWE-91

Description

OpenOlat is a web-based learning management system (LMS). Prior to version 15.3.18, 15.5.3, and 16.0.0, using a prepared import XML file (e.g. a course) any class on the Java classpath can be instantiated, including spring AOP bean factories. This can be used to execute code arbitrary code by the attacker. The attack requires an OpenOlat user account with the authoring role. It can not be exploited by unregistered users. The problem is fixed in versions 15.3.18, 15.5.3, and 16.0.0. There are no known workarounds aside from upgrading.

Affected configurations

• frentix openolat (< 15.3.18) • frentix openolat (>= 15.5.0 < 15.5.3)

Related

Weakness · CWE (1)

  • CWE-91 XML Injection weakness

References