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.
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Affected Vendors & Products
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History
Wed, 04 Mar 2026 18:15:00 +0000
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ssvc
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Wed, 04 Mar 2026 16:45:00 +0000
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| 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. | |
| Title | Craft Affected by Entries Authorship Spoofing via Mass Assignment | |
| Weaknesses | CWE-639 CWE-915 |
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cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-03-04T17:36:52.722Z
Reserved: 2026-03-03T14:25:19.244Z
Link: CVE-2026-28781
Updated: 2026-03-04T17:36:48.255Z
Status : Awaiting Analysis
Published: 2026-03-04T17:16:21.370
Modified: 2026-03-04T18:08:05.730
Link: CVE-2026-28781
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OpenCVE Enrichment
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