CVE-2022-21169

Public Exploit
Prototype Pollution

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.

Category

7.3
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.13%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory runkit.com Third-Party Advisory snyk.io
Affected: n/a express-xss-sanitizer
Published at:
Updated at:

References

Link Tags
https://security.snyk.io/vuln/SNYK-JS-EXPRESSXSSSANITIZER-3027443 third party advisory exploit
https://github.com/AhmedAdelFahim/express-xss-sanitizer/issues/4 issue tracking exploit third party advisory
https://runkit.com/embed/w306l6zfm7tu url repurposed third party advisory patch
https://github.com/AhmedAdelFahim/express-xss-sanitizer/commit/3bf8aaaf4dbb1c209dcb8d87a82711a54c1ab39a third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-21169?
CVE-2022-21169 has been scored as a high severity vulnerability.
How to fix CVE-2022-21169?
To fix CVE-2022-21169, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-21169 being actively exploited in the wild?
It is possible that CVE-2022-21169 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-21169?
CVE-2022-21169 affects n/a express-xss-sanitizer.
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