What’s Vulnerable › Vulnerabilities

CVE-2025-63704

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-07 · updated 2026-06-17
• Weakness: CWE-1321

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.

References

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

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