Blackboard Learn through 9.1 allows XSS by an authenticated user via the Feedback to Learner form.
Priority LOW 25CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
Blackboard Learn through 9.1 allows XSS by an authenticated user via the Feedback to Learner form.
Why it matters now
EPSS 0.0062 49th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:blackboard:blackboard_learn:*:*:*:*:*:*:*:* | up to 9.1 | Vulnerable | Blackboard |
- cpe:2.3:a:blackboard:blackboard_learn:*:*:*:*:*:*:*:* Versions up to 9.1 Vulnerable ·Blackboard
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-36747
- 2026-10-03 Alias added: GHSA-42mm-xxc6-g629
References
More Blackboard Learn vulnerabilities
- TI-2022-18576 Blackboard Learn 1.10.1 allows remote authenticated users to read unintended files by… CVSS 3.1MEDIUM 6.5
- TI-2018-09525 The bb-auth-provider-cas authentication module within Blackboard Learn 2018-07-02 is… CVSS 3.1MEDIUM 6.1
- TI-2017-13447 Blackboard Learn (Since at least 17th of October 2017) has allowed Unvalidated Redirects… CVSS 3.0MEDIUM 6.1
- TI-2021-14871 Blackboard Learn through 9.1 allows XSS by an authenticated user via the Assignment Instructions HTML editor. CVSS 3.1MEDIUM 5.4
- TI-2020-07228 Stored Cross-site scripting (XSS) vulnerability in Blackboard Learn/PeopleTool v9.1… CVSS 3.1MEDIUM 5.4
Sources
- CVE-2021-36747 · CVE Program
- CVE-2021-36747 · NVD
- FIRST EPSS
- GHSA-42mm-xxc6-g629 · GitHub Advisory Database · CC BY 4.0
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