VULNERABILITY INTELLIGENCE
CVE-2022-21169
CVSS score7.3 HIGH
EPSS probability0.95%
CISA KEVNot currently listed
Published2022-09-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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.
Weakness classification
- CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Primary references
- report@snyk.io — Patch, Third Party Advisory
- report@snyk.io — Exploit, Issue Tracking, Third Party Advisory
- report@snyk.io — Patch, Third Party Advisory, URL Repurposed
- report@snyk.io — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory, URL Repurposed
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory