CVE-2022-21169

Prototype Pollution

Published Sep 26, 2022 CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2022-6830 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.
Github GHSA Github GHSA GHSA-grjp-4jmr-mjcw express-xss-sanitizer vulnerable to Prototype Pollution via allowedTags attribute
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
snyk
Published
Updated
May 21, 2025, 8:29 PM
Reserved
Feb 24, 2022, 12:00 AM
Status
Modified
Published
Sep 26, 2022, 5:15 AM
Modified
Jun 17, 2026, 4:25 AM