CVE-2021-42866

Name: CVE-2021-42866
Creator: NVD / NIST
Published: 2022-03-31T18:15:08.273+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.55%

Last modified Jun 17, 2026

CVE-2021-42866 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. A Cross Site Scripting vulnerabilty exists in Pixelimity 1.0 via the Site Description field in pixelimity/admin/setting.php. EPSS estimates a 0.55% chance of exploitation in the next 30 days.

Description

A Cross Site Scripting vulnerabilty exists in Pixelimity 1.0 via the Site Description field in pixelimity/admin/setting.php

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.55%

41.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Pixelimity	Pixelimity	1.0

References

http://rlsec.xyz/vulns/CVE_2021_42866.htmlExploit, Third Party Advisory
http://rlsec.xyz/vulns/CVE_2021_42866.htmlExploit, Third Party Advisory

Timeline

Published: Mar 31, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-42866?

A Cross Site Scripting vulnerabilty exists in Pixelimity 1.0 via the Site Description field in pixelimity/admin/setting.php

How severe is CVE-2021-42866?

CVE-2021-42866 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.

How do I fix CVE-2021-42866?

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-2021-42866?

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

Scan your code now

Source: NVD / NIST