CVE-2020-13942: Apache Unomi

Critical severity, CVSS 9.8. EPSS: 68.3% chance of exploitation in the next 30 days.

It is possible to inject malicious OGNL or MVEL scripts into the /context.json public endpoint. This was partially fixed in 1.5.1 but a new attack vector was found. In Apache Unomi version 1.5.2 scripts are now completely filtered from the input. It is highly recommended to upgrade to the latest available version of the 1.5.x release to fix this problem.

Affected products

• Apache Unomi: from 1.5.0, before 1.5.2 (fixed in 1.5.2)

Published 2020-11-24. Last modified 2026-06-17.