CVE-2021-20683: Basercms

Medium severity, CVSS 5.4. EPSS: 0.7% chance of exploitation in the next 30 days.

Improper neutralization of JavaScript input in the blog article editing function of baserCMS versions prior to 4.4.5 allows remote authenticated attackers to inject an arbitrary script via unspecified vectors.

Affected products

• Basercms Basercms: before 4.4.5 (fixed in 4.4.5)

Published 2021-03-26. Last modified 2026-06-17.