CVE-2025-57323 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00054.

Exploitation poc

Automatable yes

Technical Impact partial

No data.

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References

Link	Providers
https://github.com/VulnSageAgent/PoCs/blob/main/JavaScript/prototype-pollution/mpregular%400.2.0/index.js
https://github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025-57323

History

Thu, 25 Sep 2025 09:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 24 Sep 2025 21:30:00 +0000

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'}`

Wed, 24 Sep 2025 20:00:00 +0000

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		https://github.com/VulnSageAgent/PoCs/blob/main/JavaScript/prototype-pollution/mpregular%400.2.0/index.js https://github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025-57323

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2025-09-24T00:00:00.000Z

Updated: 2025-09-24T20:20:12.386Z

Reserved: 2025-08-17T00:00:00.000Z

Link: CVE-2025-57323

Vulnrichment

Updated: 2025-09-24T20:19:45.461Z

NVD

Status : Awaiting Analysis

Published: 2025-09-24T20:15:32.000

Modified: 2025-09-26T14:32:53.583

Link: CVE-2025-57323

Redhat

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OpenCVE Enrichment

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