Description
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".
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2021-1141 | 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". |
Github GHSA |
GHSA-mjxr-4v3x-q3m4 | Improper Input Validation in sanitize-html |
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-03T20:26:25.388Z
Reserved: 2021-02-01T00:00:00.000Z
Link: CVE-2021-26540
No data.
Status : Modified
Published: 2021-02-08T17:15:13.737
Modified: 2024-11-21T05:56:26.670
Link: CVE-2021-26540
OpenCVE Enrichment
No data.
Weaknesses
EUVD
Github GHSA