CVE-2021-26540

State: Published
Severity: Not scored
Published: Feb 8, 2021
Updated: Aug 3, 2024
Reserved: Feb 1, 2021

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".

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#232-2021-01-26
https://github.com/apostrophecms/sanitize-html/pull/460
https://advisory.checkmarx.net/advisory/CX-2021-4309

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.