How severe is CVE-2023-38306?

CVE-2023-38306 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-38306 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-38306?

CVE-2023-38306 affects Webmin. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-38306?

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

When was CVE-2023-38306 published?

CVE-2023-38306 was published on 2023-07-31 and last updated on 2026-06-17.

CVE-2023-38306

CVE-2023-38306 is a medium-severity vulnerability in Webmin 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: 1% (41st 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. A Cross-site Scripting (XSS) Bypass vulnerability was discovered in the file upload functionality. Normally, the application restricts the upload of certain file types such as .svg, .php, etc., and displays an error message if a prohibited file type is detected. However, by following certain steps, an attacker can bypass these restrictions and inject malicious code.

Frequently asked questions

What is CVE-2023-38306?: An issue was discovered in Webmin 2.021. A Cross-site Scripting (XSS) Bypass vulnerability was discovered in the file upload functionality. Normally, the application restricts the upload of certain file types such as .svg, .php, etc., and displays an error message if a prohibited file type is detected. However, by following certain steps, an attacker can bypass these restrictions and inject malicious code.
How severe is CVE-2023-38306?: CVE-2023-38306 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-38306 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38306?: CVE-2023-38306 affects Webmin. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-38306?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-38306 published?: CVE-2023-38306 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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