Vulnerability Details : CVE-2021-27903
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).
Vulnerability category: Execute code
Products affected by CVE-2021-27903
- cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27903
4.65%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 92 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27903
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-27903
-
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-27903
-
https://github.com/craftcms/cms/blob/develop/CHANGELOG.md#367---2021-02-23
cms/CHANGELOG.md at develop · craftcms/cms · GitHubRelease Notes;Third Party Advisory
-
https://github.com/craftcms/cms/blob/develop/CHANGELOG.md#security
cms/CHANGELOG.md at develop · craftcms/cms · GitHubRelease Notes;Third Party Advisory
-
https://github.com/craftcms/cms/commit/c17728fa0bec11d3b82c34defe0930ed409aec38
Don’t allow pointing a Local volume to a system directory · craftcms/cms@c17728f · GitHubPatch;Third Party Advisory
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