CVE-2020-13942
CVSS v3
9.8
CRITICAL
EPSS Score
68.3 %
exploit probability, as of 2026-10-05
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2020-11-24
Frequently asked questions
What is CVE-2020-13942?
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.
Is CVE-2020-13942 actively exploited?
Active exploitation of CVE-2020-13942 has not been confirmed. Its EPSS score was 68.3% on 2026-10-05, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-13942?
CVE-2020-13942 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2020-13942 affecting your environment?
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