How severe is CVE-2023-38303?

CVE-2023-38303 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-38303 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-38303?

CVE-2023-38303 affects Webmin. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-38303?

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

When was CVE-2023-38303 published?

CVE-2023-38303 was published on 2023-07-31 and last updated on 2026-06-17.

CVE-2023-38303

CVE-2023-38303 is a medium-severity vulnerability in Webmin with a CVSS 3.x base score of 5.4. 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 5.4)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Webmin
Published: 2023-07-31
Last modified: 2026-06-17

Description

An issue was discovered in Webmin 2.021. One can exploit a stored Cross-Site Scripting (XSS) attack to achieve Remote Command Execution (RCE) through the Users and Group's real name parameter.

Frequently asked questions

What is CVE-2023-38303?: An issue was discovered in Webmin 2.021. One can exploit a stored Cross-Site Scripting (XSS) attack to achieve Remote Command Execution (RCE) through the Users and Group's real name parameter.
How severe is CVE-2023-38303?: CVE-2023-38303 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-38303 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38303?: CVE-2023-38303 affects Webmin. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-38303?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-38303 published?: CVE-2023-38303 was published on 2023-07-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:webmin:webmin:2.021:*:*:*:*:*:*:*

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