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.

Published: 2023-03-13 Last update: 2025-02-27 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-28154 is rated High Risk (67.3/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.35%). High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-28154

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-14 1.24% 1.35% +0.11%
2 2026-03-31 1.07% 1.24% +0.17%
3 2026-03-15 — 1.07% —

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-28154

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-28154

GitHub Security Advisory for CVE-2023-28154

GHSA-hc6q-2mpp-qw7j · Severity: critical · Ecosystem: npm — Cross-realm object access in Webpack 5

OS Trackers for CVE-2023-28154

vendor priority summary link
debian not yet assigned CVE-2023-28154 not yet assigned priority: Debian including 1 source packages (node-webpack), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2023-28154
redhat high — https://access.redhat.com/security/cve/CVE-2023-28154
suse high CVE-2023-28154 severity important: SUSE including 16 source package names (agama-web-ui-9+52-1.1, cockpit, …), 38 product×package rows across 6 product lines (SUSE Liberty Linux 9, SUSE Linux Enterprise Micro 5.1, … (6 product lines)): Known Not Affected 33, Fixed 5. https://www.suse.com/security/cve/CVE-2023-28154/
ubuntu medium CVE-2023-28154 medium priority: Ubuntu including 1 source packages (node-webpack), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 7, needs-triage 6. https://ubuntu.com/security/CVE-2023-28154

Affected software / configurations for CVE-2023-28154

Vendor Product Version Raw CPE
webpack.js webpack >= 5.0.0, < 5.76.0 cpe:2.3:a:webpack.js:webpack:*:*:*:*:*:node.js:*:*

References for CVE-2023-28154

cvelogic Threat Intelligence