CVE-2021-26540

Apostrophe Technologies sanitize-html before 2.3.2 does not properly validate the hostnames set by the "allowedIframeHostnames" option when the…

published February 8, 2021

CVSS
—
EPSS
2%
Percentile
77.7
In the wild
Unconfirmed
What it is

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".

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01754 · 77.7th percentile
Published
2021-02-08T16:16Z
EPSS history
Timeline
  • 08 FEB 16:16Z
    Apostrophe Technologies sanitize-html before 2.3.2 does not properly validate the hostnames set by the "allowedIframeHostnames" option when the…
    cvelistv5