VULNERABILITY INTELLIGENCE

CVE-2018-13257

CVSS score6.1 MEDIUM
EPSS probability1.21%
CISA KEVNot currently listed
Published2019-11-18
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

The bb-auth-provider-cas authentication module within Blackboard Learn 2018-07-02 is susceptible to HTTP host header spoofing during Central Authentication Service (CAS) service ticket validation, enabling a phishing attack from the CAS server login page.

Weakness classification

  • CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

Primary references