{"id":"CVE-2020-28503","aliases":["GHSA-897m-rjf5-jp39"],"url":"https://o3.security/vulnerability/CVE-2020-28503","summary":"Prototype Pollution in copy-props","details":"The package copy-props before 2.0.5 are vulnerable to Prototype Pollution via the main functionality.","published":"2021-03-23T10:15:13.270Z","modified":"2026-07-08T17:57:34.275764Z","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":2,"affectedPackages":[{"ecosystem":"npm","name":"copy-props","fixedVersion":"2.0.5"}],"fix":{"url":"https://github.com/gulpjs/copy-props/pull/7","label":"gulpjs/copy-props#7"},"references":[{"type":"FIX","url":"https://github.com/gulpjs/copy-props/pull/7"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1088047"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JS-COPYPROPS-1082870"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T17:57:34.275764Z"}}