CVE-2021-27903: Code Injection
First published: Wed Jun 30 2021(Updated: )
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).
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Craftcms Craft Cms | <3.6.7 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2021-27903
- https://github.com/craftcms/cms/commit/c17728fa0bec11d3b82c34defe0930ed409aec38
- https://github.com/craftcms/cms/blob/develop/CHANGELOG.md#367---2021-02-23
- https://github.com/craftcms/cms/blob/develop/CHANGELOG.md#security
- https://github.com/advisories/GHSA-x2j7-6hxm-87p3 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2021-27903?
The severity of CVE-2021-27903 is critical with a CVSS score of 9.8.
What is the vulnerability ID for the Craft CMS issue?
The vulnerability ID for the Craft CMS issue is CVE-2021-27903.
How can an attacker exploit CVE-2021-27903?
An attacker can exploit CVE-2021-27903 by hijacking an administrator's session and performing unauthorized administrative changes.
What is the affected software for CVE-2021-27903?
The affected software for CVE-2021-27903 is Craft CMS versions up to and including 3.6.7.
How do I mitigate the vulnerability in Craft CMS?
To mitigate the vulnerability in Craft CMS, update to version 3.6.7 or higher.
- collector/github-advisory-latest
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