CVE-2021-43129
An Access Control vulnerability exists in Desire2Learn/D2L Learning Management System (LMS) 20.21...
A bypass exists for Desire2Learn/D2L Brightspace’s “Disable Right Click” option in the quizzing feature, which allows a quiz-taker to access print and copy functionality via the browser’s right click menu even when “Disable Right Click” is enabled on the quiz.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A bypass exists for Desire2Learn/D2L Brightspace’s “Disable Right Click” option in the quizzing feature, which allows a quiz-taker to access print and copy functionality via the browser’s right click menu even when “Disable Right Click” is enabled on the quiz.
- Record
CVE-2021-43129- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Updated
- 2026-11-02
CVE List No score
A bypass exists for Desire2Learn/D2L Brightspace’s “Disable Right Click” option in the quizzing feature, which allows a quiz-taker to access print and copy functionality via the browser’s right click menu even when “Disable Right Click” is enabled on the quiz.
- Record
CVE-2021-43129- Updated
- 2026-11-02
EUVDEUVD-2021-30078 No score
A bypass exists for Desire2Learn/D2L Brightspace’s “Disable Right Click” option in the quizzing feature, which allows a quiz-taker to access print and copy functionality via the browser’s right click menu even when “Disable Right Click” is enabled on the quiz.
- Record
EUVD-2021-30078- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m7pf-2qjx-4mqr
An Access Control vulnerability exists in Desire2Learn/D2L Learning Management System (LMS) 20.21...
An Access Control vulnerability exists in Desire2Learn/D2L Learning Management System (LMS) 20.21.7 via the quizzing feature, which allows a remote malicious user to disable the Disable right click control.
- Record
GHSA-m7pf-2qjx-4mqr- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-668
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | Skotizo/CVE-2021-43129 | 2022-04-12 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-43129 is a medium vulnerability (CVSS 6.5) in D2l Brightspace, published April 19, 2022. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.72%, the 77th percentile. No source names a fixed version.