{"cve":"CVE-2020-28503","nvd":{"published":"2021-03-23T10:15:13.270","modified":"2026-06-17T03:10:33.160","status":"Modified","description":"The package copy-props before 2.0.5 are vulnerable to Prototype Pollution via the main functionality.","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":[],"references":["https://github.com/gulpjs/copy-props/pull/7","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1088047","https://snyk.io/vuln/SNYK-JS-COPYPROPS-1082870","https://github.com/gulpjs/copy-props/pull/7","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1088047"],"products":["gulpjs:copy-props"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2020-28503","score":0.01697,"percentile":0.77163,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-897m-rjf5-jp39","url":"https://osv.dev/vulnerability/GHSA-897m-rjf5-jp39","summary":"Prototype Pollution in copy-props","modified":"2025-01-14T08:56:52.572897Z","packages":[{"ecosystem":"npm","name":"copy-props","purl":"pkg:npm/copy-props","ranges":["<2.0.5"],"fixed":["2.0.5"]}]}],"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."]}