CVE-2020-28911
Incorrect Access Control in Nagios Fusion 4.1.8 and earlier allows low-privileged authenticated...
Incorrect Access Control in Nagios Fusion 4.1.8 and earlier allows low-privileged authenticated users to extract passwords used to manage fused servers via the test_server command in ajaxhelper.php.
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
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Incorrect Access Control in Nagios Fusion 4.1.8 and earlier allows low-privileged authenticated users to extract passwords used to manage fused servers via the test_server command in ajaxhelper.php.
- Record
CVE-2020-28911- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-922
- Updated
- 2026-11-02
CVE List No score
Incorrect Access Control in Nagios Fusion 4.1.8 and earlier allows low-privileged authenticated users to extract passwords used to manage fused servers via the test_server command in ajaxhelper.php.
- Record
CVE-2020-28911- Updated
- 2026-11-02
EUVDEUVD-2020-21302 No score
Incorrect Access Control in Nagios Fusion 4.1.8 and earlier allows low-privileged authenticated users to extract passwords used to manage fused servers via the test_server command in ajaxhelper.php.
- Record
EUVD-2020-21302- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6gwh-qx8x-gvw2 No score
Incorrect Access Control in Nagios Fusion 4.1.8 and earlier allows low-privileged authenticated...
Incorrect Access Control in Nagios Fusion 4.1.8 and earlier allows low-privileged authenticated users to extract passwords used to manage fused servers via the test_server command in ajaxhelper.php.
- Record
GHSA-6gwh-qx8x-gvw2- Weakness
- CWE-922
- 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-2020-28911 is a medium vulnerability (CVSS 6.5) in Nagios Fusion, published May 24, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.59%, the 89th percentile. No source names a fixed version.
References
nagios.com/downloads/nagios-xi/change-log
skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you
packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.html
nvd.nist.gov/vuln/detail/CVE-2020-28911
github.com/advisories/GHSA-6gwh-qx8x-gvw2