CVE-2021-27375
5.3 Medium
Traefik before 2.4.5 allows the loading of IFRAME elements from other domains.
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
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
0.77%Up 0.1 points since Apr 14, 2021
What each source reports
NVD Score used
Traefik before 2.4.5 allows the loading of IFRAME elements from other domains.
- Record
CVE-2021-27375- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-1021
- Updated
- 2026-11-02
CVE List No score
Traefik before 2.4.5 allows the loading of IFRAME elements from other domains.
- Record
CVE-2021-27375- Updated
- 2026-11-02
EUVDEUVD-2021-14133 No score
Traefik before 2.4.5 allows the loading of IFRAME elements from other domains.
- Record
EUVD-2021-14133- Updated
- 2026-11-03
OSV
Traefik before 2.4.5 allows the loading of IFRAME elements from other domains.
- Record
CVE-2021-27375- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-27375 is a medium vulnerability (CVSS 5.3) in Containous Traefik, published February 18, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.77%, the 55th percentile. No source names a fixed version.