CVE-2021-3339
ModernFlow before 1.3.00.208 does not constrain web-page access to members of a security group,...
ModernFlow before 1.3.00.208 does not constrain web-page access to members of a security group, as demonstrated by the Search Screen and the Profile Screen.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
ModernFlow before 1.3.00.208 does not constrain web-page access to members of a security group, as demonstrated by the Search Screen and the Profile Screen.
- Record
CVE-2021-3339- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-287
- Updated
- 2026-11-02
CVE ListNo score
ModernFlow before 1.3.00.208 does not constrain web-page access to members of a security group, as demonstrated by the Search Screen and the Profile Screen.
- Record
CVE-2021-3339- Updated
- 2026-11-02
EUVDEUVD-2021-26670No score
ModernFlow before 1.3.00.208 does not constrain web-page access to members of a security group, as demonstrated by the Search Screen and the Profile Screen.
- Record
EUVD-2021-26670- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-35r4-97wh-88x3No score
ModernFlow before 1.3.00.208 does not constrain web-page access to members of a security group,...
ModernFlow before 1.3.00.208 does not constrain web-page access to members of a security group, as demonstrated by the Search Screen and the Profile Screen.
- Record
GHSA-35r4-97wh-88x3- Weakness
- CWE-287
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-3339 is a medium vulnerability (CVSS 4.3) in Microsoft Modernflow, published February 19, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.02%, the 81st percentile. No source names a fixed version.