GHSA-mjxr-4v3x-q3m4
Improper Input Validation in sanitize-html
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | sanitize-html | < 2.3.2 | 2.3.2 |
Details
As written in the advisory (Markdown source, shown as plain text).
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".
References
External links from the advisory. They lead to third-party sites.