CVE-2022-21169 HIGH

CVE-2022-21169: Prototype Pollution

Vendor N/A
Product express-xss-sanitizer
Published September 26, 2022
Last update May 21, 2025
View on NVD All CVEs

CVSS base score

7.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

September 26, 2022 CVE published
May 21, 2025 Record updated