Nagios XI < 5.8.0 Core Config Manager (CCM) XSS via Templates Pages
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.0 / Nagios XI 5.8.0 contais a cross-site scripting (XSS) vulnerability in the Templates pages, specifically in the UI logic that renders and handles the Active/Actions buttons. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA XI (Nagios) Fixed in 5.8.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Nagios XI 5.8.0
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2021-22314 Nagios XI < 5.8.0 XSS via Views URL HandlingPriority LOW 24
- TI-2021-22313 Nagios XI < 5.8.0 XSS via BPI Config ID HandlingPriority LOW 24
- TI-2021-22312 Nagios XI < 5.8.0 XSS via My Tools PagePriority LOW 24
Timeline
- 2026-10-02 Threatist record created from CVE-2021-47689
- 2026-10-03 Alias added: GHSA-jp7v-jpwq-p4pw
References
More Nagios Xi vulnerabilities
- TI-2021-07545 Nagios XI version xi-5.7.5 is affected by OS command injection. KEVCVSS 3.1HIGH 8.8
- TI-2021-07544 Nagios XI version xi-5.7.5 is affected by OS command injection. KEVCVSS 3.1HIGH 8.8
- TI-2021-07543 Nagios XI version xi-5.7.5 is affected by OS command injection. KEVCVSS 3.1HIGH 8.8
- TI-2019-11993 Nagios XI before 5.6.6 allows remote command execution as root. KEVCVSS 3.1HIGH 8.8
- TI-2023-26027 Nagios XI before version 5.11.3 was discovered to contain a remote code execution (RCE)… CVSS 3.1CRITICAL 9.8
- TI-2018-11196 Snoopy 1.0 in Nagios XI 5.5.6 allows remote unauthenticated attackers to execute… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2021-47689 · CVE Program
- CVE-2021-47689 · NVD
- FIRST EPSS
- GHSA-jp7v-jpwq-p4pw · GitHub Advisory Database · CC BY 4.0
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