{"id":"CVE-2020-7707","aliases":["GHSA-6fw4-hr69-g3rv"],"url":"https://o3.security/vulnerability/CVE-2020-7707","summary":"Prototype Pollution in property-expr","details":"The package property-expr before 2.0.3 are vulnerable to Prototype Pollution via the setter function.","published":"2020-08-18T14:15:13.793Z","modified":"2026-07-08T21:26:26.769017Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"property-expr","fixedVersion":"2.0.3"}],"fix":{"url":"https://github.com/jquense/expr/commit/df846910915d59f711ce63c1f817815bceab5ff7","label":"jquense/expr@df84691"},"references":[{"type":"FIX","url":"https://github.com/jquense/expr/commit/df846910915d59f711ce63c1f817815bceab5ff7"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-598857"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JS-PROPERTYEXPR-598800"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T21:26:26.769017Z"}}