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.

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webpack: avoid cross-realm objects

A flaw was found in the webpack package, which could allow a remote attacker to bypass security restrictions caused by the mishandling of the magic comment feature by the ImportParserPlugin.js. This flaw allows an attacker to gain access to the real global object by sending a specially-crafted...

SUSE CVE-2023-28154

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...

DEBIAN-CVE-2023-28154

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...

UBUNTU-CVE-2023-28154

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...

PT-2023-21600 · Webpack +3 · Webpack +3

Name of the Vulnerable Software and Affected Versions: Webpack versions prior to 5.76.0 Description: The issue concerns cross-realm object access. Specifically, the ImportParserPlugin.js mishandles the magic comment feature, allowing an attacker who controls a property of an untrusted object to...