{"id":"CVE-2023-28154","aliases":["GHSA-hc6q-2mpp-qw7j"],"url":"https://o3.security/vulnerability/CVE-2023-28154","summary":"Cross-realm object access in Webpack 5","details":"Webpack 5 before 5.76.0 does not avoid cross-realm object access. ImportParserPlugin.js mishandles the magic comment feature. An attacker who controls a property of an untrusted object can obtain access to the real global object.","published":"2023-03-13T00:00:00Z","modified":"2026-08-12T03:51:43.609098437Z","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":0,"affectedPackages":[{"ecosystem":"npm","name":"webpack","fixedVersion":"5.76.0"}],"fix":{"url":"https://github.com/webpack/webpack/pull/16500","label":"webpack/webpack#16500"},"references":[{"type":"WEB","url":"https://github.com/webpack/webpack/compare/v5.75.0...v5.76.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28154.json"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AU7BOXTBK3KDYSWH67ASZ22TUIOZ3X5G/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PPSAXUTXBCCTAHTCX5BUR4YVP25XALQ3/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U2AFCM6FFE3LRYI6KNEQWKMXMQOBZQ2D/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28154"},{"type":"FIX","url":"https://github.com/webpack/webpack/pull/16500"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:43.609098437Z"}}