CVE-2018-13257

6.1 mediumEPSS 1.2%

Medium (6.1) in blackboard blackboard learn. EPSS 1.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

6.1 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
CWE: CWE-601
Published: 2019-11-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

blackboard:blackboard_learn

References

https://github.com/gluxon/CVE-2018-13257
https://github.com/gluxon/CVE-2018-13257

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