Strix
26.1K

CVE-2020-12670

MEDIUMCVSS 6.1/10EPSS 0.68%

Last modified

CVE-2020-12670 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. XSS exists in Webmin 1.941 and earlier affecting the Save function of the Read User Email Module / mailboxes Endpoint when attempting to save HTML emails. This module parses any output without sanitizing SCRIPT elements, as opposed to the View function, which sanitizes the input correctly. EPSS estimates a 0.68% chance of exploitation in the next 30 days.

Description

XSS exists in Webmin 1.941 and earlier affecting the Save function of the Read User Email Module / mailboxes Endpoint when attempting to save HTML emails. This module parses any output without sanitizing SCRIPT elements, as opposed to the View function, which sanitizes the input correctly. A malicious user can send any JavaScript payload into the message body and execute it if the user decides to save that email.

Metrics

CVSS 3.1
6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability
0.68%

47.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
WebminWebmin<= 1.941

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-12670?
XSS exists in Webmin 1.941 and earlier affecting the Save function of the Read User Email Module / mailboxes Endpoint when attempting to save HTML emails. This module parses any output without sanitizing SCRIPT elements, as opposed to the View function, which sanitizes the input correctly. A malicious user can send any JavaScript payload into the message body and execute it if the user decides to save that email.
How severe is CVE-2020-12670?
CVE-2020-12670 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.68% probability of exploitation in the next 30 days.
How do I fix CVE-2020-12670?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-12670?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST