Description
OpenOlat is an open source web-based e-learning platform for teaching, learning, assessment and communication. Prior to versions 19.1.31, 20.1.18, and 20.2.5, an authenticated user with the Author role can inject Velocity directives into a reminder email template. When the reminder is processed (either triggered manually or via the daily cron job), the injected directives are evaluated server-side. By chaining Velocity's #set directive with Java reflection, an attacker can instantiate arbitrary Java classes such as java.lang.ProcessBuilder and execute operating system commands with the privileges of the Tomcat process (typically root in containerized deployments). This issue has been patched in versions 19.1.31, 20.1.18, and 20.2.5.
INFO
Published Date :
2026-03-30T20:31:23.135Z
Last Modified :
2026-03-31T18:53:40.837Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-28228 vulnerability.
| Vendors | Products |
|---|---|
| Openolat |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-28228.
