Session fixation in Craft CMS
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-27903 |
| CWE-ID | CWE-384 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Craft CMS Web applications / CMS |
| Vendor | Pixel & Tonic, Inc. |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Session Fixation
EUVDB-ID: #VU54557
Risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-27903
CWE-ID:
CWE-384 - Session Fixation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the affected application.
The vulnerability exists due to session fixation issue. A remote attacker can hijack administrator's session and gain full access to the web application.
Install updates from vendor's website.
Vulnerable software versionsCraft CMS: 3.6.0 - 3.6.6
External linkshttp://github.com/craftcms/cms/blob/develop/CHANGELOG.md#367---2021-02-23
http://github.com/craftcms/cms/blob/develop/CHANGELOG.md#security
http://github.com/craftcms/cms/commit/c17728fa0bec11d3b82c34defe0930ed409aec38
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
