{"cve":"CVE-2020-7743","nvd":{"published":"2020-10-13T10:15:13.440","modified":"2026-06-17T03:25:21.960","status":"Modified","description":"The package mathjs before 7.5.1 are vulnerable to Prototype Pollution via the deepExtend function that runs upon configuration updates.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","score":7.3},"cwes":["CWE-1321"],"references":["https://github.com/josdejong/mathjs/blob/develop/src/utils/object.js%23L82","https://github.com/josdejong/mathjs/commit/ecb80514e80bce4e6ec7e71db8ff79954f07c57e","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1017113","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1017112","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1017111"],"products":["mathjs:mathjs"],"source":"nvd","synced_at":"2026-10-19T21:09:53.489947993+00:00"},"epss":{"cve":"CVE-2020-7743","score":0.03924,"percentile":0.90353,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-x2fc-mxcx-w4mf","url":"https://osv.dev/vulnerability/GHSA-x2fc-mxcx-w4mf","summary":"Prototype Pollution in mathjs","modified":"2025-01-14T08:57:11.940336Z","packages":[{"ecosystem":"npm","name":"mathjs","purl":"pkg:npm/mathjs","ranges":["<7.5.1"],"fixed":["7.5.1"]}]}],"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."]}