CVE-2021-28171
Vangene deltaFlow E-platform - Broken Authentication
The Vangene deltaFlow E-platform does not take properly protective measures. Attackers can obtain privileged permissions remotely by tampering with users’ data in the Cookie.
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
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Vangene deltaFlow E-platform - Broken Authentication
The Vangene deltaFlow E-platform does not take properly protective measures. Attackers can obtain privileged permissions remotely by tampering with users’ data in the Cookie.
- Record
CVE-2021-28171- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-522
- Updated
- 2026-11-02
EUVDEUVD-2021-14861
The Vangene deltaFlow E-platform does not take properly protective measures. Attackers can obtain privileged permissions remotely by tampering with users’ data in the Cookie.
- Record
EUVD-2021-14861- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7w8x-g282-6cf2
The Vangene deltaFlow E-platform does not take properly protective measures. Attackers can obtain...
The Vangene deltaFlow E-platform does not take properly protective measures. Attackers can obtain privileged permissions remotely by tampering with users’ data in the Cookie.
- Record
GHSA-7w8x-g282-6cf2- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-522, CWE-565
- Updated
- 2026-11-02
NVD
The Vangene deltaFlow E-platform does not take properly protective measures. Attackers can obtain privileged permissions remotely by tampering with users’ data in the Cookie.
- Record
CVE-2021-28171- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-522, CWE-565
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-28171 is a critical vulnerability (CVSS 9.8) in Deltaflow Project Deltaflow, published April 6, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.22%, the 68th percentile. No source names a fixed version.