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CVE-2026-109430— Ellucian WebAdvisor 3.2 Unauthenticated XXE Injection

Quick assessment

Affected
Ellucian WebAdvisor
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 WebAdvisor 3.2 存在一个未经验证的 XML 外部实体（XXE）注入漏洞，远程攻击者无需禁用外部实体和 DTD 解析功能，即可向 /WebAdvisor/WebAdvisor 端点提交精心构造的 XML POST 请求。利用此缺陷，攻击者可迫使服务器发起服务器端请求伪造（SSRF）请求，通过攻击者控制的 SMB 共享强制泄露 NTLMv2 哈希值，并通过带外错误通道读取底层 Windows 主机上的任意文件。WebAdvisor 已于 2022 年 6 月进入结束支持（EoS）状态，建

CVSS 7.5 · High EPSS 0.34% · P26

Affected Version Matrix 1

VendorProduct Version RangeStatus
Ellucian WebAdvisor 3.2 affected
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I. Basic Information for CVE-2026-109430

Vulnerability Information
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Vulnerability Title
Ellucian WebAdvisor 3.2 Unauthenticated XXE Injection
Source: CVE Program / CVE List V5
Vulnerability Description
Ellucian WebAdvisor 3.2 contains an unauthenticated XML External Entity (XXE) injection vulnerability that allows remote attackers to submit crafted XML POST requests to the /WebAdvisor/WebAdvisor endpoint without disabling external entity and DTD resolution. Attackers can exploit this flaw to force the server into SSRF requests, coerce NTLMv2 hash disclosure via attacker-controlled SMB shares, and read arbitrary files from the underlying Windows host through an out-of-band error-based channel. WebAdvisor entered end-of-support status in June 2022 and users are encouraged to migrate to Colleague Self-Service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
XML外部实体引用的不恰当限制(XXE)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Ellucian WebAdvisor 3.2 -

II. Public POCs for CVE-2026-109430

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III. Intelligence Information for CVE-2026-109430

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Other References for CVE-2026-109430 (1)

Other References for CVE-2026-109430 (1)

IV. Related Vulnerabilities

Same product: WebAdvisor
Same vendor: Ellucian
Same weakness: CWE-611

V. Comments for CVE-2026-109430

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