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CVE-2021-26540

Status Candidate

Overview

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".

Related Files

Red Hat Security Advisory 2021-3759-01
Posted Oct 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3759-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.9.0. Issues addressed include bypass, denial of service, and information leakage vulnerabilities.

tags | advisory, denial of service, vulnerability
systems | linux, redhat
advisories | CVE-2021-26539, CVE-2021-26540, CVE-2021-28092, CVE-2021-28169, CVE-2021-29059, CVE-2021-3121, CVE-2021-31525, CVE-2021-32690, CVE-2021-33194, CVE-2021-33195, CVE-2021-33196, CVE-2021-33197, CVE-2021-33198, CVE-2021-34428, CVE-2021-34558, CVE-2021-36980
SHA-256 | 7265806b363eb2f9eb43a9647afb7e380c631bafc4c8c84cefa21d9b1bb6be63
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