CVE-2018-13257
CVE-2018-13257 is a medium-severity vulnerability in Blackboard Blackboard Learn with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 5.8
- EPSS exploit prediction: 1% (65th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-601
- Affected product: Blackboard Blackboard Learn
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2018-13257?
- CVE-2018-13257 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2018-13257 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-13257?
- CVE-2018-13257 affects Blackboard Blackboard Learn. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-13257?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-13257 published?
- CVE-2018-13257 was published on 2019-11-18 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:blackboard:blackboard_learn:2018-07-02:*:*:*:*:*:*:*
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