{"url":"http://public2.vulnerablecode.io/api/packages/280134?format=json","purl":"pkg:npm/%40firebase/util@0.3.3-canary.c47ba31d0","type":"npm","namespace":"@firebase","name":"util","version":"0.3.3-canary.c47ba31d0","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"0.3.4","latest_non_vulnerable_version":"0.3.4","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/53799?format=json","vulnerability_id":"VCID-8nbj-2ajq-nya7","summary":"Prototype Pollution\nThis affects the package `@firebase/util` This vulnerability relates to the deepExtend function within the `DeepCopy.ts` file. Depending on if user input is provided, an attacker can overwrite and pollute the object prototype of a program.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-7765","reference_id":"","reference_type":"","scores":[{"value":"0.00169","scoring_system":"epss","scoring_elements":"0.37741","published_at":"2026-06-04T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-7765"},{"reference_url":"https://github.com/firebase/firebase-js-sdk/commit/9cf727fcc3d049551b16ae0698ac33dc2fe45ada","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/firebase/firebase-js-sdk/commit/9cf727fcc3d049551b16ae0698ac33dc2fe45ada"},{"reference_url":"https://github.com/firebase/firebase-js-sdk/pull/4001","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/firebase/firebase-js-sdk/pull/4001"},{"reference_url":"https://snyk.io/vuln/SNYK-JS-FIREBASEUTIL-1038324","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://snyk.io/vuln/SNYK-JS-FIREBASEUTIL-1038324"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7765","reference_id":"CVE-2020-7765","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7765"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/79147?format=json","purl":"pkg:npm/%40firebase/util@0.3.4","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/%2540firebase/util@0.3.4"}],"aliases":["CVE-2020-7765","GHSA-fpm5-vv97-jfwg"],"risk_score":null,"exploitability":null,"weighted_severity":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-8nbj-2ajq-nya7"}],"fixing_vulnerabilities":[],"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/%2540firebase/util@0.3.3-canary.c47ba31d0"}