CVE-2021-36747
CVE-2021-36747 is a medium-severity vulnerability in Blackboard Blackboard Learn with a CVSS 3.x base score of 5.4. 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-79.
Key facts
- Severity: Medium (CVSS 3.x base score 5.4)
- CVSS v2: 3.5
- EPSS exploit prediction: 1% (45th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Blackboard Blackboard Learn
- Published:
- Last modified:
Description
Blackboard Learn through 9.1 allows XSS by an authenticated user via the Feedback to Learner form.
Frequently asked questions
- What is CVE-2021-36747?
- Blackboard Learn through 9.1 allows XSS by an authenticated user via the Feedback to Learner form.
- How severe is CVE-2021-36747?
- CVE-2021-36747 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-36747 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-36747?
- CVE-2021-36747 affects Blackboard Blackboard Learn. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-36747?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-36747 published?
- CVE-2021-36747 was published on 2021-07-20 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:blackboard:blackboard_learn:*:*:*:*:*:*:*:*
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