CVE-2026-32856: Ellucian Banner Self-Service

Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Ellucian Banner Self-Service before the April T2 release (2025-04-23) contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary JavaScript in a victim's browser by injecting unsanitized input through the toDateFormat request parameter in the dateConverter endpoint. Attackers can craft a malicious URL targeting the unauthenticated dateConverter endpoint to steal session cookies or perform other malicious actions in the context of the victim's browser session.

Affected products

• Ellucian Banner Self-Service: version 9.23 only

Published 2026-06-09. Last modified 2026-07-23.