CVE-2023-28790: Simple Staff List Project Simple Staff List

Medium severity, CVSS 4.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Auth. (editor+) Stored Cross-Site Scripting (XSS) vulnerability in Brett Shumaker Simple Staff List plugin <= 2.2.3 versions.

Affected products

• Simple Staff List Project Simple Staff List: before 2.2.4 (fixed in 2.2.4)

Published 2023-09-27. Last modified 2026-06-17.