What is CVE-2018-13257?

CVE-2018-13257 is a medium-severity vulnerability in Blackboard Learn, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2019-11-18.

How severe is CVE-2018-13257?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2018-13257 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Open Redirect in Blackboard Learn

CVE-2018-13257

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.

Vulnerability class: Open Redirect

EPSS: 0.012 (65.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Blackboard Blackboard_learn — versions 2018-07-02
N/a — versions n/a

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-13257?: CVE-2018-13257 is a medium-severity vulnerability in Blackboard Learn, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2019-11-18.
How severe is CVE-2018-13257?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2018-13257 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.