CVE-2019-20139
MEDIUMCVSS 5.4/10EPSS 26.11%
Last modified
CVE-2019-20139 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. In Nagios XI 5.6.9, XSS exists via the nocscreenapi.php host, hostgroup, or servicegroup parameter, or the schedulereport.php hour or frequency parameter. Any authenticated user can attack the admin user.. EPSS estimates a 26.11% chance of exploitation in the next 30 days.
Description
In Nagios XI 5.6.9, XSS exists via the nocscreenapi.php host, hostgroup, or servicegroup parameter, or the schedulereport.php hour or frequency parameter. Any authenticated user can attack the admin user.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nagios | Nagios Xi | 5.6.9 |
References
- https://code610.blogspot.com/2019/12/multiple-xss-bugs-in-nagios-569.htmlExploit, Third Party Advisory
- https://code610.blogspot.com/2019/12/multiple-xss-bugs-in-nagios-569.htmlExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-20139?
In Nagios XI 5.6.9, XSS exists via the nocscreenapi.php host, hostgroup, or servicegroup parameter, or the schedulereport.php hour or frequency parameter. Any authenticated user can attack the admin user.
How severe is CVE-2019-20139?
CVE-2019-20139 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 26.11% probability of exploitation in the next 30 days.
How do I fix CVE-2019-20139?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-20139?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST