Prototype Pollution in Express_xss_sanitizer_project Express_xss_sanitizer
CVE-2022-21169
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.
Vulnerability class: Prototype Pollution
EPSS: 0.007 (50.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Express_xss_sanitizer_project Express_xss_sanitizer
- N/a Express-xss-sanitizer — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- report@snyk.io (Exploit, Third Party Advisory, x_refsource_MISC)
- report@snyk.io (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- report@snyk.io (URL Repurposed, Patch, Third Party Advisory, x_refsource_MISC)
- report@snyk.io (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2022-21169?
- CVE-2022-21169 is a high-severity vulnerability in Express_xss_sanitizer_project Express_xss_sanitizer, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 7.3/10. Published 2022-09-26.
- How severe is CVE-2022-21169?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2022-21169 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.