CVE-2024-43376
Umbraco CMS vulnerable to Generation of Error Message Containing Sensitive Information
Umbraco is an ASP.NET CMS. Some endpoints in the Management API can return stack trace information, even when Umbraco is not in debug mode. This vulnerability is fixed in 14.1.2.
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
CVE List Score used
Umbraco CMS vulnerable to Generation of Error Message Containing Sensitive Information
Umbraco is an ASP.NET CMS. Some endpoints in the Management API can return stack trace information, even when Umbraco is not in debug mode. This vulnerability is fixed in 14.1.2.
- Record
CVE-2024-43376- 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 - Weakness
- CWE-209
- Updated
- 2026-11-02
EUVDEUVD-2024-2524
Umbraco is an ASP.NET CMS. Some endpoints in the Management API can return stack trace information, even when Umbraco is not in debug mode. This vulnerability is fixed in 14.1.2.
- Record
EUVD-2024-2524- 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 - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-77gj-crhp-3gvx
Umbraco CMS vulnerable to Generation of Error Message Containing Sensitive Information
Impact
Some endpoints in the Management API can return stack trace information, even when Umbraco is not in debug mode.
Explanation of the vulnerability
Management API endpoints leaked stack traces in case of Internal server errors, no matter if the debug setting was disabled.
E.g. when paging with negative numbers in some apis
- Record
GHSA-77gj-crhp-3gvx- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - 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 - Weakness
- CWE-209
- Updated
- 2026-11-02
NVD
Umbraco is an ASP.NET CMS. Some endpoints in the Management API can return stack trace information, even when Umbraco is not in debug mode. This vulnerability is fixed in 14.1.2.
- Record
CVE-2024-43376- 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 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-209
- Updated
- 2026-11-02
OSV
Umbraco CMS vulnerable to Generation of Error Message Containing Sensitive Information
Umbraco is an ASP.NET CMS. Some endpoints in the Management API can return stack trace information, even when Umbraco is not in debug mode. This vulnerability is fixed in 14.1.2.
- Record
CVE-2024-43376- 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 - Weakness
- CWE-209
- Updated
- 2026-11-02
OSVGHSA-77gj-crhp-3gvx
Umbraco CMS vulnerable to Generation of Error Message Containing Sensitive Information
Impact
Some endpoints in the Management API can return stack trace information, even when Umbraco is not in debug mode.
Explanation of the vulnerability
Management API endpoints leaked stack traces in case of Internal server errors, no matter if the debug setting was disabled.
E.g. when paging with negative numbers in some apis
- Record
GHSA-77gj-crhp-3gvx- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - 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 - Weakness
- CWE-209
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
Umbraco.Cms.Api.ManagementNuGet |
14.0.0 up to 14.1.2 | 14.1.2 |
Umbraco.Cms.Api.ManagementNuGet |
14.0.0 up to 14.1.2, plus listed versions 14.1.014.1.0-rc14.1.0-rc214.1.1 |
14.1.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-43376 is a medium vulnerability (CVSS 4.3) in Umbraco Cms, published August 20, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.36%, the 30th percentile. Fixed in Umbraco.Cms.Api.Management 14.1.2.
References
github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-77gj-crhp-3gvx
nvd.nist.gov/vuln/detail/CVE-2024-43376