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CVE-2020-23992

17
FAUCET Score

CVE-2020-23992 describes a Cross-Site Scripting (XSS) vulnerability in Nagios XI version 5.7.1, allowing remote attackers to execute arbitrary code through a crafted GET request utilizing the returnUrl parameter. This medium-severity vulnerability has a CVSS score of 6.1, indicating it can be exploited over the network with low attack complexity, requiring user interaction, and potentially leading to limited confidentiality and integrity impacts. While the EPSS score is low, suggesting minimal observed exploitation, there is currently no public exploit code available in Metasploit, Nuclei, or ExploitDB, and it has not garnered significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
5.7.1CPE matchmatch criteria
cpe:2.3:a:nagios:nagios_xi:5.7.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.94%
Probability of exploitation in next 30 days
EPSS Percentile
78.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0194 is in the 89th percentile among its peer group of 26,236 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / EmreOvunc/Nagios-XI-Reflected-XSS
ExploitThird Party Advisory