CVE-2025-57323

Published Sep 24, 2025 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
mpregular is a package that provides a small program development framework based on RegularJS. A Prototype Pollution vulnerability in the mp.addEventHandler function of mpregular version 0.2.0 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-31055 mpregular vulnerable to prototype pollution
Github GHSA Github GHSA GHSA-xx4g-r65p-3qf2 mpregular vulnerable to prototype pollution
History
Type Values Removed Values Added
First Time appeared Regularjs
Regularjs mpregular
CPEs cpe:2.3:a:regularjs:mpregular:*:*:*:*:*:node.js:*:*
Vendors & Products Regularjs
Regularjs mpregular
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-1321
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
Description mpregular is a package that provides a small program development framework based on RegularJS. A Prototype Pollution vulnerability in the mp.addEventHandler function of mpregular version 0.2.0 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 24, 2025, 8:20 PM
Reserved
Aug 17, 2025, 12:00 AM
Status
Analyzed
Published
Sep 24, 2025, 8:15 PM
Modified
Jun 17, 2026, 9:43 AM