CVE-2021-26540

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".
Configurations

Configuration 1 (hide)

cpe:2.3:a:apostrophecms:sanitize-html:*:*:*:*:*:node.js:*:*

History

21 Nov 2024, 05:56

Type Values Removed Values Added
References () https://advisory.checkmarx.net/advisory/CX-2021-4309 - Exploit, Patch, Third Party Advisory () https://advisory.checkmarx.net/advisory/CX-2021-4309 - Exploit, Patch, Third Party Advisory
References () https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#232-2021-01-26 - Release Notes, Third Party Advisory () https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#232-2021-01-26 - Release Notes, Third Party Advisory
References () https://github.com/apostrophecms/sanitize-html/pull/460 - Patch, Third Party Advisory () https://github.com/apostrophecms/sanitize-html/pull/460 - Patch, Third Party Advisory

Information

Published : 2021-02-08 17:15

Updated : 2024-11-21 05:56


NVD link : CVE-2021-26540

Mitre link : CVE-2021-26540

CVE.ORG link : CVE-2021-26540


JSON object : View

Products Affected

apostrophecms

  • sanitize-html