CVE-2026-32856

Ellucian Banner Self-Service Reflected XSS via dateConverter

MEDIUM
6.1
CVSS Score
Published: June 9, 2026 at 07:14 PM UTC
Updated: July 23, 2026 at 07:32 PM UTC
2 products affected across 1 vendorBanner Student Registration Self ServiceBanner Self-Service

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < april t29.23
Affected range stops below april t2, so it looks safe — our inference, not a vendor statement
v < April T29.23
Affected range stops below April T2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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