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CVE-2026-32856— Ellucian Banner Self-Service Reflected XSS via dateConverter

Quick assessment

Affected
Ellucian Banner Self-Service
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Ellucian Banner Self-Service是美国Ellucian公司的一个高等教育自助服务平台。 Ellucian Banner Self-Service 2025-04-23之前版本存在跨站脚本漏洞，该漏洞源于dateConverter端点中toDateFormat请求参数未清理输入，可能导致未经身份验证的攻击者通过反射型跨站脚本漏洞在受害者浏览器中执行任意JavaScript。

CVSS 6.1 · Medium EPSS 0.36% · P27

Affected Version Matrix 2

VendorProduct Version RangeStatus
Ellucian Banner Self-Service < April T2 affected
9.23 affected
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I. Basic Information for CVE-2026-32856

Vulnerability Information
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Vulnerability Title
Ellucian Banner Self-Service Reflected XSS via dateConverter
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Ellucian Banner Self-Service 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ellucian Banner Self-Service是美国Ellucian公司的一个高等教育自助服务平台。 Ellucian Banner Self-Service 2025-04-23之前版本存在跨站脚本漏洞，该漏洞源于dateConverter端点中toDateFormat请求参数未清理输入，可能导致未经身份验证的攻击者通过反射型跨站脚本漏洞在受害者浏览器中执行任意JavaScript。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Ellucian Banner Self-Service 0 ~ April T2 -

II. Public POCs for CVE-2026-32856

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III. Intelligence Information for CVE-2026-32856

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Vendor Advisories for CVE-2026-32856 (1)

Vendor Pages for CVE-2026-32856 (1)

IV. Related Vulnerabilities

Same product: Banner Self-Service
Same vendor: Ellucian
Same weakness: CWE-79

V. Comments for CVE-2026-32856

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