How severe is CVE-2023-7312?

CVE-2023-7312 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-7312 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-7312?

CVE-2023-7312 affects Nagios Fusion. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-7312?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-7312 have an EU (EUVD) identifier?

Yes. CVE-2023-7312 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-60053.

When was CVE-2023-7312 published?

CVE-2023-7312 was published on 2025-10-30 and last updated on 2026-06-17.

CVE-2023-7312

CVE-2023-7312 is a medium-severity vulnerability in Nagios Fusion with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v4: 6.2
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-60053
Weakness: CWE-79
Affected product: Nagios Fusion
Published: 2025-10-30
Last modified: 2026-06-17

Description

Nagios Fusion versions prior to 4.2.0 contain a stored cross-site scripting (XSS) vulnerability when adding or configuring Email Settings. Unsanitized user input can be stored and later rendered in the administrative UI, causing JavaScript to execute in the browser of any user who views the affected page. An attacker who can add or modify SMTP/email settings or manipulate the sendmail configuration fields could persist a malicious payload that executes in the context of other users' browsers.

Frequently asked questions

What is CVE-2023-7312?: Nagios Fusion versions prior to 4.2.0 contain a stored cross-site scripting (XSS) vulnerability when adding or configuring Email Settings. Unsanitized user input can be stored and later rendered in the administrative UI, causing JavaScript to execute in the browser of any user who views the affected page. An attacker who can add or modify SMTP/email settings or manipulate the sendmail configuration fields could persist a malicious payload that executes in the context of other users' browsers.
How severe is CVE-2023-7312?: CVE-2023-7312 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-7312 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-7312?: CVE-2023-7312 affects Nagios Fusion. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-7312?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-7312 have an EU (EUVD) identifier?: Yes. CVE-2023-7312 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-60053.
When was CVE-2023-7312 published?: CVE-2023-7312 was published on 2025-10-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nagios:fusion:*:*:*:*:*:*:*:*

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