CVE-2021-32696 LOW

CVE-2021-32696: Passing in a non-string 'html' argument can lead to unsanitized output

Vendor Ericnorris
Product striptags
Weakness CWE-241
Published June 18, 2021
Last update August 3, 2024

CVSS base score

3.7/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

The npm package "striptags" is an implementation of PHP's strip_tags in Typescript. In striptags before version 3.2.0, a type-confusion vulnerability can cause `striptags` to concatenate unsanitized strings when an array-like object is passed in as the `html` parameter. This can be abused by an attacker who can control the shape of their input, e.g. if query parameters are passed directly into the function. This can lead to a XSS.

Key dates

02Disclosure timeline

June 18, 2021 CVE published
August 3, 2024 Record updated