How severe is CVE-2023-0599?

CVE-2023-0599 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-0599 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0599?

CVE-2023-0599 affects Rapid7 Metasploit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-0599?

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

When was CVE-2023-0599 published?

CVE-2023-0599 was published on 2023-02-01 and last updated on 2026-06-17.

CVE-2023-0599

CVE-2023-0599 is a medium-severity vulnerability in Rapid7 Metasploit with a CVSS 3.x base score of 6.1. 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 6.1)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Rapid7 Metasploit
Published: 2023-02-01
Last modified: 2026-06-17

Description

Rapid7 Metasploit Pro versions 4.21.2 and lower suffer from a stored cross site scripting vulnerability, due to a lack of JavaScript request string sanitization. Using this vulnerability, an authenticated attacker can execute arbitrary HTML and script code in the target browser against another Metasploit Pro user using a specially crafted request. Note that in most deployments, all Metasploit Pro users tend to enjoy privileges equivalent to local administrator.

Frequently asked questions

What is CVE-2023-0599?: Rapid7 Metasploit Pro versions 4.21.2 and lower suffer from a stored cross site scripting vulnerability, due to a lack of JavaScript request string sanitization. Using this vulnerability, an authenticated attacker can execute arbitrary HTML and script code in the target browser against another Metasploit Pro user using a specially crafted request. Note that in most deployments, all Metasploit Pro users tend to enjoy privileges equivalent to local administrator.
How severe is CVE-2023-0599?: CVE-2023-0599 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-0599 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0599?: CVE-2023-0599 affects Rapid7 Metasploit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-0599?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-0599 published?: CVE-2023-0599 was published on 2023-02-01 and last updated on 2026-06-17.

References

https://docs.rapid7.com/release-notes/metasploit/20230130/

Affected products (1)

cpe:2.3:a:rapid7:metasploit:*:*:*:*:pro:*:*:*

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