{"cve":"CVE-2020-13942","nvd":{"published":"2020-11-24T18:15:11.910","modified":"2026-06-17T02:53:56.880","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-74","CWE-20"],"references":["http://unomi.apache.org./security/cve-2020-13942.txt","http://www.openwall.com/lists/oss-security/2020/11/24/5","https://advisory.checkmarx.net/advisory/CX-2020-4284","https://lists.apache.org/thread.html/r08a4057ff7196b8880117edaa4b6207cbd36ed692d8dd1f5a56b4d0f%40%3Cannounce.apache.org%3E","https://lists.apache.org/thread.html/r4a8fa91836687eaca42b5420a778ca8c8fd3a3740e4cf4401acc9118%40%3Cdev.unomi.apache.org%3E"],"products":["apache:unomi"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-13942","score":0.68296,"percentile":0.99332,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-xp5j-wj4h-2jq9","url":"https://osv.dev/vulnerability/GHSA-xp5j-wj4h-2jq9","summary":"Injection and Improper Input Validation in Apache Unomi","modified":"2023-11-08T04:02:23.451746Z","packages":[{"ecosystem":"Maven","name":"org.apache.unomi:unomi","purl":"pkg:maven/org.apache.unomi/unomi","ranges":["<1.5.2"],"fixed":["1.5.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}