CVE-2023-40045: Progress WS_FTP Server

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

In WS_FTP Server versions prior to 8.7.4 and 8.8.2, a reflected cross-site scripting (XSS) vulnerability exists in WS_FTP Server's Ad Hoc Transfer module.  An attacker could leverage this vulnerability to target WS_FTP Server users with a specialized payload which results in the execution of malicious JavaScript within the context of the victims browser.

Affected products

• Progress WS_FTP Server: before 8.7.4 (fixed in 8.7.4); from 8.8, before 8.8.2 (fixed in 8.8.2)

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