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Arch Linux: ASA-202106-35 High: Drupal XSS Security Advisory

Calendar Jun 17, 2021 • User Avatar LinuxSecurity Advisories
1 min read
Archlinux Large Esm H446
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Topics Covered

security advisory high severity remote exploit cross-site scripting drupal arch linux
The package drupal before version 9.1.10-1 is vulnerable to cross-site scripting. 
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://ckeditor.com/blog/upgrade-ckeditor-4-to-5/
https://security.archlinux.org/CVE-2021-33829