CVE-2019-16728 – dompurify

Package

Manager: npm
Name: dompurify
Vulnerable Version: >=0 <2.0.3

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: 0.01188 pctl0.78025

Details

Cross-Site Scripting in dompurify Versions of `dompurify` prior to 2.0.3 are vulnerable to Cross-Site Scripting (XSS). The package has an XSS filter bypass due to Mutation XSS in both Chrome and Safari through a combination of `<svg>`/`<math>` elements and `</p>`/`</br>`. An example payload is: `<svg></p><style><a id="</style><img src=1 onerror=alert(1)>">`. This allows attackers to bypass the XSS protection and execute arbitrary JavaScript in a victim's browser. ## Recommendation Upgrade to version 2.0.3 or later. You may also disallow `<svg>` and `<math>` through `dompurify` configurations: ```DOMPurify.sanitize(input, { FORBID_TAGS: ['svg', 'math'] });```

Metadata

Created: 2020-08-28T21:25:11Z
Modified: 2023-09-13T18:51:44Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/08/GHSA-chqj-j4fh-rw7m/GHSA-chqj-j4fh-rw7m.json
CWE IDs: ["CWE-79"]
Alternative ID: GHSA-chqj-j4fh-rw7m
Finding: F008
Auto approve: 1