Ellucian Banner Self-Service Reflected XSS via dateConverter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Banner Self-Service (Ellucian) Fixed in April T2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Ellucian Banner Self-Service April T2
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-34704 Ellucian Banner Self-Service Stored XSS via getFacultyMeetingTimes APIPriority LOW 23
Timeline
- 2026-10-02 Threatist record created from CVE-2026-32856
- 2026-10-03 Alias added: GHSA-x7x7-w9rf-g664
References
More Ellucian vulnerabilities
- TI-2023-26952 Ellucian Banner 9.17 allows Insecure Direct Object Reference (IDOR) via a modified… CVSS 3.1MEDIUM 6.5
- TI-2023-02643 Ellucian Ethos Identity logout cross site scripting CVSS 3.1MEDIUM 6.1
- TI-2015-03926 Ellucian (formerly SunGard) Banner Student 8.5.1.2 through 8.7 allows remote attackers to… CVSS 3.0CRITICAL 9.8
- TI-2026-74567 Unauthenticated XXE injection in Ellucian WebAdvisor CVSS 4.0HIGH 8.7
- TI-2019-06469 An improper authentication vulnerability can be exploited through a race condition that… CVSS 3.0HIGH 8.1
- TI-2026-06035 SQL injection in Ellucian Advance Web CVSS 4.0CRITICAL 9.4
Sources
- CVE-2026-32856 · CVE Program
- CVE-2026-32856 · NVD
- FIRST EPSS
- GHSA-x7x7-w9rf-g664 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences