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Craft CMS Cross-site Scripting Vulnerability

Moderate severity GitHub Reviewed Published Jul 2, 2021 to the GitHub Advisory Database • Updated Sep 21, 2023

Package

composer craftcms/cms (Composer)

Affected versions

< 3.6.0

Patched versions

3.6.0

Description

An issue was discovered in Craft CMS before 3.6.0. In some circumstances, a potential XSS vulnerability existed in connection with front-end forms that accepted user uploads.

References

Published by the National Vulnerability Database Jun 30, 2021
Reviewed Jul 1, 2021
Published to the GitHub Advisory Database Jul 2, 2021
Last updated Sep 21, 2023

Severity

Moderate
6.1
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weaknesses

CVE ID

CVE-2021-27902

GHSA ID

GHSA-3jxh-789f-p7m6

Source code

No known source code
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