GHSA-mjxr-4v3x-q3m4

Source

https://github.com/advisories/GHSA-mjxr-4v3x-q3m4

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/05/GHSA-mjxr-4v3x-q3m4/GHSA-mjxr-4v3x-q3m4.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-mjxr-4v3x-q3m4

Aliases

CVE-2021-26540

Published

2021-05-06T16:10:19Z

Modified

2023-11-08T04:05:21Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator

Summary

Improper Input Validation in sanitize-html

Details

Apostrophe Technologies sanitize-html before 2.3.2 does not properly validate the hostnames set by the "allowedIframeHostnames" option when the "allowIframeRelativeUrls" is set to true, which allows attackers to bypass hostname whitelist for iframe element, related using an src value that starts with "/\example.com".

Database specific

{
    "cwe_ids":  [
        "CWE-20"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2021-03-29T23:13:11Z",
    "nvd_published_at":  "2021-02-08T17:15:00Z",
    "severity":  "MODERATE"
}

References

Affected packages

npm / sanitize-html

Package

Name: sanitize-html; View open source insights on deps.dev
Purl: pkg:npm/sanitize-html

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.3.2

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/05/GHSA-mjxr-4v3x-q3m4/GHSA-mjxr-4v3x-q3m4.json"