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".
                
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Affected Vendors & Products
References
        History
                    No history.
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: mitre
Published: 2021-02-08T16:16:07
Updated: 2024-08-03T20:26:25.388Z
Reserved: 2021-02-01T00:00:00
Link: CVE-2021-26540
 Vulnrichment
                        Vulnrichment
                    No data.
 NVD
                        NVD
                    Status : Modified
Published: 2021-02-08T17:15:13.737
Modified: 2024-11-21T05:56:26.670
Link: CVE-2021-26540
 Redhat
                        Redhat