The vulnerability occurs in configurations where foreign content is allowed, i.e. either svg
or math
are in the list of allowed elements.
Specifically, the requirements for the vulnerability are:
svg
, or math
iframe
, noembed
, xmp
, title
, noframes
, style
or noscript
Configurations that meet the above requirements plus the following are vulnerable to an additional vulnerability:
title
, desc
, mi
, mo
, mn
, ms
, mtext
, annotation-xml
.In case an application sanitizes user input with a vulnerable configuration, an attacker could bypass the sanitization and inject arbitrary HTML, including JavaScript code.
Note that in the default configuration the vulnerability is not present.
The vulnerability has been fixed in versions 8.0.723 and 8.1.722-beta (preview version).
Disallow foreign elements svg
and math
. This is the case in the default configuration, which is therefore not affected by the vulnerability.
{ "nvd_published_at": "2023-10-05T14:15:09Z", "cwe_ids": [ "CWE-79" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2023-10-04T18:52:35Z" }