CVE-2020-4987: IBM Flashsystem 900 Firmware

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

The IBM FlashSystem 900 user management GUI is vulnerable to stored cross-site scripting in code versions 1.5.2.8 and prior and 1.6.1.2 and prior. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

Affected products

• IBM Flashsystem 900 Firmware: before 1.5.2.9 (fixed in 1.5.2.9); from 1.6.0.0, before 1.6.1.3 (fixed in 1.6.1.3)

Published 2021-05-04. Last modified 2026-06-17.