CVE-2021-28048
An overly permissive CORS policy in Devolutions Server before 2021.1 and Devolutions Server LTS...
An overly permissive CORS policy in Devolutions Server before 2021.1 and Devolutions Server LTS before 2020.3.18 allows a remote attacker to leak cross-origin data via a crafted HTML page.
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
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An overly permissive CORS policy in Devolutions Server before 2021.1 and Devolutions Server LTS before 2020.3.18 allows a remote attacker to leak cross-origin data via a crafted HTML page.
- Record
CVE-2021-28048- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-346
- Updated
- 2026-11-02
CVE List No score
An overly permissive CORS policy in Devolutions Server before 2021.1 and Devolutions Server LTS before 2020.3.18 allows a remote attacker to leak cross-origin data via a crafted HTML page.
- Record
CVE-2021-28048- Updated
- 2026-11-02
EUVDEUVD-2021-14755 No score
An overly permissive CORS policy in Devolutions Server before 2021.1 and Devolutions Server LTS before 2020.3.18 allows a remote attacker to leak cross-origin data via a crafted HTML page.
- Record
EUVD-2021-14755- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hcjf-gxg6-hwvr No score
An overly permissive CORS policy in Devolutions Server before 2021.1 and Devolutions Server LTS...
An overly permissive CORS policy in Devolutions Server before 2021.1 and Devolutions Server LTS before 2020.3.18 allows a remote attacker to leak cross-origin data via a crafted HTML page.
- Record
GHSA-hcjf-gxg6-hwvr- Weakness
- CWE-346
- 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-2021-28048 is a medium vulnerability (CVSS 6.5) in Devolutions Server, published April 14, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.59%, the 48th percentile. No source names a fixed version.