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CVE-2025-59364

Good to know:

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Date: September 13, 2025

The express-xss-sanitizer (aka Express XSS Sanitizer) package through 2.0.0 for Node.js has an unbounded recursion depth in sanitize in lib/sanitize.js for a JSON request body.

Severity Score

Related Resources (10)

https://nvd.nist.gov/vuln/detail/CVE-2025-59364
https://gist.github.com/Spendroslav/177804eaef5acfb222a550de212a1b94
https://github.com/AhmedAdelFahim/express-xss-sanitizer/security/advisories/GHSA-hvq2-wf92-j4f3
https://www.tenable.com/cve/CVE-2025-59364
https://github.com/AhmedAdelFahim/express-xss-sanitizer/pull/23
https://github.com/AhmedAdelFahim/express-xss-sanitizer/commit/62d6542a2a57298da7a2e02de623454007e4f6d6
https://www.npmjs.com/package/express-xss-sanitizer
https://github.com/AhmedAdelFahim/express-xss-sanitizer
https://dbugs.ptsecurity.com/vulnerability/PT-2025-37434
https://www.mend.io/vulnerability-database/CVE-2025-59364

Severity Score

Weakness Type (CWE)

Uncontrolled Recursion

CWE-674

Top Fix

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Upgrade Version

Upgrade to version express-xss-sanitizer - 2.0.1;https://github.com/AhmedAdelFahim/express-xss-sanitizer.git - no_fix

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

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