Prototype Pollution in express-xss-sanitizer before 1.1.3 via allowedTags attribute allows XSS bypass

CVE-2022-21169 · MEDIUM Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

Learn more about our Web Application Penetration Testing UK.