CVE-2023-44383 October CMS stored XSS by authenticated backend user with improper configuration

What is CVE-2023-44383?

CVE-2023-44383 is a medium-severity cross-site scripting vulnerability in Octobercms October, published on 29 Nov 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

October is a Content Management System (CMS) and web platform to assist with development workflow. A user with access to the media manager that stores SVG files could create a stored XSS attack against themselves and any other user with access to the media manager when SVG files are supported. This issue has been patched in version 3.5.2.

Weakness: CWE-79

Which versions are affected by CVE-2023-44383?

2 open source packages ship an affected version, including october/system. It affects 1 product.

Products include Octobercms October.

How do I fix CVE-2023-44383?

Upgrade october/system to 3.5.2 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-44383 being exploited?

There is no known exploitation of CVE-2023-44383 in the wild and no public exploit code.

Other vulnerabilities in Octobercms October

• CVE-2021-32648 October CMS Improper Authentication Exploited High 8.2
• CVE-2021-3311 October CMS Session ID not invalidated after logout Critical 9.8
• CVE-2017-1000194 October CMS File Upload Vulnerability Critical 9.8
• CVE-2017-1000196 Code injection in n/a Critical 9.8
• CVE-2017-1000197 Path traversal in n/a Critical 9.8

All Octobercms October vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-rvx8-p3xp-fj3p.