CVE-2021-27903

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

An issue was discovered in Craft CMS before 3.6.7. In some circumstances, a potential Remote Code Execution vulnerability existed on sites that did not restrict administrative changes (if an attacker were somehow able to hijack an administrator's session).

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-862

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/craftcms/cms/blob/develop/CHANGELOG.md#367---2021-02-23Release Notes, Third Party Advisory
https://github.com/craftcms/cms/blob/develop/CHANGELOG.md#securityRelease Notes, Third Party Advisory
https://github.com/craftcms/cms/commit/c17728fa0bec11d3b82c34defe0930ed409aec38Patch, Third Party Advisory
https://github.com/craftcms/cms/blob/develop/CHANGELOG.md#367---2021-02-23Release Notes, Third Party Advisory
https://github.com/craftcms/cms/blob/develop/CHANGELOG.md#securityRelease Notes, Third Party Advisory
https://github.com/craftcms/cms/commit/c17728fa0bec11d3b82c34defe0930ed409aec38Patch, Third Party Advisory

Timeline

Published: Jun 30, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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