CVE-2021-41733
Oppia 3.1.4 does not verify that certain URLs are valid before navigating to them.
CVE-2021-41733 is a medium vulnerability (CVSS 6.1) in Oppia, published November 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.74%, the 55th percentile. No source names a fixed version.
- Severity
- 6.1 MediumCVSS 3.1, NVD
- Exploit chance
- 0.74%EPSS, 55th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
Oppia 3.1.4 does not verify that certain URLs are valid before navigating to them.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
Affected products
What each source reports
NVD Score used
Oppia 3.1.4 does not verify that certain URLs are valid before navigating to them.
- Record
CVE-2021-41733- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
CVE ListNo score
Oppia 3.1.4 does not verify that certain URLs are valid before navigating to them.
- Record
CVE-2021-41733- Updated
- 2026-11-02
EUVDEUVD-2021-28745No score
Oppia 3.1.4 does not verify that certain URLs are valid before navigating to them.
- Record
EUVD-2021-28745- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rxgx-ggx4-6jr5No score
Oppia 3.1.4 does not verify that certain URLs are valid before navigating to them.
Oppia 3.1.4 does not verify that certain URLs are valid before navigating to them.
- Record
GHSA-rxgx-ggx4-6jr5- Weakness
- CWE-601
- Updated
- 2026-11-02
OSV
Oppia 3.1.4 does not verify that certain URLs are valid before navigating to them.
- Record
CVE-2021-41733- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.