CVE-2021-26539
Published
CVSS v3
5.3
MEDIUM
CVSS v2
5
MEDIUM
Affected
1
PROJECT
Description
Apostrophe Technologies sanitize-html before 2.3.1 does not properly handle internationalized domain name (IDN) which could allow an attacker to bypass hostname whitelist validation set by the "allowedIframeHostnames" option.
Clean up user-submitted HTML, preserving whitelisted elements and whitelisted attributes on a per-element basis. Built on htmlparser2 for speed and tolerance
GitHub