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CVE-2022-21169

Good to know:

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Date: September 26, 2022

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.

Language: JS

Severity Score

Related Resources (6)

https://github.com/AhmedAdelFahim/express-xss-sanitizer/commit/3bf8aaaf4dbb1c209dcb8d87a82711a54c1ab39a
https://runkit.com/embed/w306l6zfm7tu
https://github.com/AhmedAdelFahim/express-xss-sanitizer/issues/4
https://nvd.nist.gov/vuln/detail/CVE-2022-21169
https://github.com/AhmedAdelFahim/express-xss-sanitizer
https://www.mend.io/vulnerability-database/CVE-2022-21169

Severity Score

Weakness Type (CWE)

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

CWE-1321

Top Fix

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Upgrade Version

Upgrade to version express-xss-sanitizer - 1.1.3

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

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