CVE-2022-21169

PoC ×2—

CVSS 3.1

6.1 medium

EPSS

<1%p54

Published

Sep 26, 2022 (Sep 26, 2022)

Modified

Jun 17, 2026

Description

The package express-xss-sanitizer before 1.1.3 are vulnerable to Prototype Pollution via the allowedTags attribute, allowing the attacker to bypass xss sanitization.

Vendors: express xss sanitizer project
Products: express xss sanitizer
Weakness: CWE-1321
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.8%)

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