CVE-2023-28154
NVD-CWE-noinfoPublished: March 13, 2023· Updated: Jun 17, 2026
Official 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.
Risk Analysis
Webpack versions prior to 5.76.0 fail to prevent cross-realm object access due to mishandling of magic comments. This critical flaw allows an attacker to gain access to the global object, potentially leading to full application compromise.
No public exploit is known, and the vulnerability is not in the CISA KEV. It is remotely exploitable.
Upgrade Webpack to version 5.76.0 or higher. Audit code for untrusted object property usage.
Technical Analysis
CVE-2023-28154 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (10)
Quick Facts
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-28154 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts