{"cve":"CVE-2023-26133","nvd":{"published":"2023-06-12T05:15:09.400","modified":"2026-06-17T05:42:45.080","status":"Modified","description":"All versions of the package progressbar.js are vulnerable to Prototype Pollution via the function extend() in the file utils.js.","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":["CWE-1321"],"references":["https://github.com/kimmobrunfeldt/progressbar.js/blob/74536b9eeeaaf51144706d918ed5a0a679631d96/src/utils.js%23L18","https://github.com/kimmobrunfeldt/progressbar.js/blob/74536b9eeeaaf51144706d918ed5a0a679631d96/src/utils.js%23L20","https://security.snyk.io/vuln/SNYK-JS-PROGRESSBARJS-3184152","https://github.com/kimmobrunfeldt/progressbar.js/blob/74536b9eeeaaf51144706d918ed5a0a679631d96/src/utils.js%23L18","https://github.com/kimmobrunfeldt/progressbar.js/blob/74536b9eeeaaf51144706d918ed5a0a679631d96/src/utils.js%23L20"],"products":["progressbar.js_project:progressbar.js"],"source":"nvd","synced_at":"2026-10-19T21:38:24.161619714+00:00"},"epss":{"cve":"CVE-2023-26133","score":0.01261,"percentile":0.6964,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-89qm-hm2x-mxm3","url":"https://osv.dev/vulnerability/GHSA-89qm-hm2x-mxm3","summary":"progressbar.js vulnerable to Prototype Pollution","modified":"2023-11-08T04:11:59.374308Z","packages":[{"ecosystem":"npm","name":"progressbar.js","purl":"pkg:npm/progressbar.js","ranges":["<1.1.1"],"fixed":["1.1.1"]}]}],"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."]}