CVE-2022-21169
express-xss-sanitizer vulnerable to Prototype Pollution via allowedTags attribute
6.1
MEDIUM
CVSS 3.1
EPSS 0.50%
Description
The package express-xss-sanitizer before 1.1.3 is vulnerable to Prototype Pollution via the `allowedTags` attribute, allowing the attacker to bypass xss sanitization.
How to fix CVE-2022-21169
To remediate CVE-2022-21169, upgrade the affected package to a fixed version below.
- npm/express-xss-sanitizer—upgrade to 1.1.3 or later
Is CVE-2022-21169 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.1.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |