CVE-2017-15284: October CMS October

Medium severity, CVSS 5.4. EPSS: 4% chance of exploitation in the next 30 days.

Cross-Site Scripting exists in OctoberCMS 1.0.425 (aka Build 425), allowing a least privileged user to upload an SVG file containing malicious code as the Avatar for the profile. When this is opened by the Admin, it causes JavaScript execution in the context of the Admin account.

Affected products

• October CMS October: version 1.0.425 only

Published 2017-10-12. Last modified 2026-06-17.