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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.

PUBLISHED Reserved 2026-03-16 | Published 2026-06-09 | Updated 2026-06-10 | Assigner VulnCheck




MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

MEDIUM: 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Problem types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
affected

Any version before April T2
affected

9.23 (custom)
affected

Credits

Abdullah M. Alotaibi finder

Faris Almutairi finder

VulnCheck coordinator

References

www.ellucian.com/security-researcher-hall-of-fame product

www.ellucian.com/...e-about-ellucian-banner-self-service.pdf product

www.vulncheck.com/...service-reflected-xss-via-dateconverter third-party-advisory

cve.org (CVE-2026-32856)

nvd.nist.gov (CVE-2026-32856)

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