CVE-2020-13942
Remote Code Execution in Apache Unomi
- Published
- Nov 24, 2020
- Updated
- Feb 13, 2025
- Assigning CNA
- apache
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.3%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
unomi/CVE-2020-13942
Apache Unomi Expression Language Injection RCE (CVE-2020-13942)
Vulhub vulnerability labsDeclared conditions
- lab image version: vulhub/unomi:1.5.1(unomi/CVE-2020-13942/docker-compose.yml:services.web.image)
- lab image version: elasticsearch:7.9.3(unomi/CVE-2020-13942/docker-compose.yml:services.elasticsearch.image)
http/cves/2020/CVE-2020-13942.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: regex,status,word($.matchers[*].type)
Responsible use
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