๐Ÿ›ก๏ธ CVE-2026-28781
๐ŸŸก CVSS 6.5 โ€” Medium โš ๏ธ Exploit Public CWE-639 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Craft is a content management system (CMS). Prior to 4.17.0-beta.1 and 5.9.0-beta.1, the entry creation process allows for Mass Assignment of the authorId attribute. A user with "Create Entries" permission can inject the authorIds[] (or authorId) parameter into the POST request, which the backend processes without verifying if the current user is authorized to assign authorship to others. Normally, this field is not present in the request for users without the necessary permissions. By manually adding this parameter, an attacker can attribute the new entry to any user, including Admins. This effectively "spoofs" the authorship. This vulnerability is fixed in 4.17.0-beta.1 and 5.9.0-beta.1.

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE CWE-639
Public Exploit โš ๏ธ Yes
Source NVD
Published 2026-03-04
Updated 2026-06-15
Modified 2026-03-05

Affected Packages

Software From version Fixed in
craft-cms โ€” โ€”
craftcms/cms 4.0.0-RC1 4.17.0-beta.1

Similar Threats

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