How severe is CVE-2023-40985?

CVE-2023-40985 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-2023-40985 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40985?

CVE-2023-40985 affects Webmin. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-40985?

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

When was CVE-2023-40985 published?

CVE-2023-40985 was published on 2023-09-15 and last updated on 2026-07-09.

CVE-2023-40985

CVE-2023-40985 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: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Webmin
Published: 2023-09-15
Last modified: 2026-07-09

Description

An issue was discovered in Webmin 2.100. The File Manager functionality allows an attacker to exploit a Cross-Site Scripting (XSS) vulnerability. By providing a malicious payload, an attacker can inject arbitrary code, which is then executed within the context of the victim's browser when any file is searched/replaced.

Frequently asked questions

What is CVE-2023-40985?: An issue was discovered in Webmin 2.100. The File Manager functionality allows an attacker to exploit a Cross-Site Scripting (XSS) vulnerability. By providing a malicious payload, an attacker can inject arbitrary code, which is then executed within the context of the victim's browser when any file is searched/replaced.
How severe is CVE-2023-40985?: CVE-2023-40985 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-2023-40985 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40985?: CVE-2023-40985 affects Webmin. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-40985?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-40985 published?: CVE-2023-40985 was published on 2023-09-15 and last updated on 2026-07-09.

References

https://github.com/Vi39/Webmin-2.100/blob/main/CVE-2023-40985

Affected products (1)

cpe:2.3:a:webmin:webmin:2.100:*:*:*:*:*:*:*

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