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CVE-2018-15713

22
FAUCET Score

CVE-2018-15713 describes a persistent cross-site scripting (XSS) vulnerability in Nagios XI version 5.5.6, specifically affecting the admin/users.php component. This medium-severity flaw (CVSS 5.4) allows authenticated remote attackers to inject malicious scripts via a stored email address, potentially leading to limited impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
5.5.6CPE matchmatch criteria
cpe:2.3:a:nagios:nagios_xi:5.5.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
7.17%
Probability of exploitation in next 30 days
EPSS Percentile
93.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0717 is in the 99th percentile among its peer group of 15,239 CVEs.

Social Chatter

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

Remediation

Vendor Patches (3)

dogukanurkervendor investigatingvia llm_extracted
posthogvendor investigatingvia llm_extracted
qlikvendor investigatingvia llm_extracted

Vendor Advisories (3)

dogukanurkerllm-dogukanurker-870a9e7eabc79aa0HIGH

[R2] Nagios XI Multiple Vulnerabilities

Nov 13, 2018
qlikllm-qlik-755ce6d1011394b1HIGH

[R2] Nagios XI Multiple Vulnerabilities

Nov 13, 2018
posthogllm-posthog-f5f4a45be457c255HIGH

[R2] Nagios XI Multiple Vulnerabilities

Nov 13, 2018

References

tenable.com / security/research/tra-2018-37
ExploitThird Party Advisory