CVE-2020-21142

Name: CVE-2020-21142
Creator: NVD / NIST
Published: 2021-06-28T20:15:07.727+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.69%

Last modified Jun 17, 2026

CVE-2020-21142 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Cross Site Scripting (XSS) vulnerabilty in IPFire 2.23 via the IPfire web UI in the mail.cgi.. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

Description

Cross Site Scripting (XSS) vulnerabilty in IPFire 2.23 via the IPfire web UI in the mail.cgi.

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

0.69%

47.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Ipfire	Ipfire	2.23

References

https://bugzilla.ipfire.org/show_bug.cgi?id=12226Exploit, Issue Tracking, Patch, Third Party Advisory
https://bugzilla.ipfire.org/show_bug.cgi?id=12226Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Jun 28, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-21142?

Cross Site Scripting (XSS) vulnerabilty in IPFire 2.23 via the IPfire web UI in the mail.cgi.

How severe is CVE-2020-21142?

CVE-2020-21142 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2020-21142?

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-2020-21142?

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

Scan your code now

Source: NVD / NIST