CVE-2018-1000521: Bigtreecms Bigtree CMS

Medium severity, CVSS 6.1. EPSS: 0.9% chance of exploitation in the next 30 days.

BigTree-CMS contains a Cross Site Scripting (XSS) vulnerability in /users/create that can result in The low-privileged users can use this vulnerability to attack high-privileged(Developer) users.. This attack appear to be exploitable via no. This vulnerability appears to have been fixed in after commit b652cfdc14d0670c81ac4401ad5a04376745c279.

Affected products

• Bigtreecms Bigtree CMS: version 4.2.21 only

Published 2018-06-26. Last modified 2026-06-17.