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Cross-realm object access in Webpack 5

Critical severity GitHub Reviewed Published Mar 13, 2023 to the GitHub Advisory Database • Updated Oct 30, 2023

Package

npm webpack (npm)

Affected versions

>= 5.0.0, < 5.76.0

Patched versions

5.76.0

Description

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.

References

Published by the National Vulnerability Database Mar 13, 2023
Published to the GitHub Advisory Database Mar 13, 2023
Reviewed Mar 14, 2023
Last updated Oct 30, 2023

Severity

Critical
9.8
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

No CWEs

CVE ID

CVE-2023-28154

GHSA ID

GHSA-hc6q-2mpp-qw7j

Source code

No known source code

Credits

Checking history
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