CVE-2025-63704

CRITICAL 9.8

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

4th

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.

Vendor	n/a
Product	n/a
Published	May 7, 2026
Last Updated	May 8, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

npmjs.com: https://www.npmjs.com/package/query-string-parser?activeTab=readme github.com: https://github.com/victorteokw/query-string-parser/issues/3 gist.github.com: https://gist.github.com/6en6ar/d62f614dbb2b1032b5e45a56fe26ec8b