CVE-2026-109430
Ellucian WebAdvisor 3.2 Unauthenticated XXE Injection
- State
- Published
- Severity
- 8.7 High
- Published
- Oct 15, 2026
- Updated
- Oct 20, 2026
- Reserved
- Oct 12, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-611 Improper Restriction of XML External Entity Reference
Affected Products
| Product | Versions |
|---|---|
WebAdvisorEllucian |
|
References
- Vendor Homepageproduct
- VulnCheck Advisory: Ellucian WebAdvisor 3.2 Unauthenticated XXE Injectionthird-party-advisory
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