XSS Vulnerability in Craft CMS Affected by User Upload Forms
CVE-2021-27902

6.1MEDIUM

Key Information:

Vendor

Craftcms

Status
Craft Cms
Vendor
CVE Published:
30 June 2021

What is CVE-2021-27902?

A Cross-Site Scripting (XSS) vulnerability was identified in Craft CMS versions prior to 3.6.0, specifically related to front-end forms that accepted user uploads. This flaw could allow an attacker to inject malicious scripts, potentially compromising user data and website integrity. It is crucial for users of affected versions to update their Craft CMS installations to the latest version to mitigate this security risk.

References

https://github.com/craftcms/cms/blob/develop/CHANGELOG.md...
x_refsource_MISC
https://github.com/craftcms/cms/commit/8ee85a8f03c143fa24...
x_refsource_MISC
https://github.com/craftcms/cms/blob/develop/CHANGELOG.md...
x_refsource_MISC

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2021-27902 : XSS Vulnerability in Craft CMS Affected by User Upload Forms