[manjaro-security] [ASA-202106-35] drupal: cross-site scripting

[Santiago Torres-Arias via arch-security]

Arch Linux Security Advisory ASA-202106-35
==========================================

Severity: High
Date    : 2021-06-15
CVE-ID  : CVE-2021-33829
Package : drupal
Type    : cross-site scripting
Remote  : Yes
Link    : https://security.archlinux.org/AVG-2069

Summary
=======

The package drupal before version 9.1.10-1 is vulnerable to cross-site
scripting.

Resolution
==========

Upgrade to 9.1.10-1.

# pacman -Syu "drupal>=9.1.10-1"

The problem has been fixed upstream in version 9.1.10.

Workaround
==========

None.

Description
===========

Drupal core uses the third-party CKEditor library. This library has an
error in parsing HTML that could lead to a cross-site scripting (XSS)
attack. CKEditor 4.16.1 and later, as bundled with Drupal 9.1.9,
include the fix.

Impact
======

A remote attacker could execute arbitrary JavaScript code through
cross-site scripting using crafted HTML code.

References
==========

https://www.drupal.org/sa-core-2021-003
https://ckeditor.com/blog/ckeditor-4.16.1-with-accessibility-enhancements/#improvements-for-comments-in-html-parser
https://security.archlinux.org/CVE-2021-33829
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