CVE-2025-63704 | NPM package query-parser-string 1.0.0 is vulnerable to Proto… | CVSS 9.8 CRITICAL

Description

NPM package query-parser-string 1.0.0 is vulnerable to Prototype Pollution. The package does not properly sanitize user supplied query parameters and merges them to the newly created object.

Metadata

CVE ID: CVE-2025-63704
State: PUBLISHED
Assigner: mitre
Reserved: 2025-10-27 00:00 UTC
Published: 2026-05-07 00:00 UTC
Last updated: 2026-05-08 21:30 UTC
Primary CWE: CWE-1321
CWE-1321 Improperly Controlled Modification of Object Protot…
Vendor / Product: n/a / n/a
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
n/a	n/a	—	n/a

Weakness (CWE)

CWE	Source	Description
—	cna	n/a
CWE-1321	adp	CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (3)