Craft is a content management system (CMS). Prior to 5.9.0-beta.1 and 4.17.0-beta.1, the "Duplicate" entry action does not properly verify if the user has permission to perform this action on the specific target elements. Even with only "View Entries" permission (where the "Duplicate" action is restricted in the UI), a user can bypass this restriction by sending a direct request. Furthermore, this vulnerability allows duplicating other users' entries by specifying their Entry IDs. Since Entry IDs are incremental, an attacker can trivially brute-force these IDs to duplicate and access restricted content across the system. This vulnerability is fixed in 5.9.0-beta.1 and 4.17.0-beta.1.

Project Subscriptions

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-jxm3-pmm2-9gf6 Craft CMS has Permission Bypass and IDOR in Duplicate Entry Action
Fixes

Solution

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Workaround

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History

Wed, 04 Mar 2026 16:45:00 +0000

Type Values Removed Values Added
Description Craft is a content management system (CMS). Prior to 5.9.0-beta.1 and 4.17.0-beta.1, the "Duplicate" entry action does not properly verify if the user has permission to perform this action on the specific target elements. Even with only "View Entries" permission (where the "Duplicate" action is restricted in the UI), a user can bypass this restriction by sending a direct request. Furthermore, this vulnerability allows duplicating other users' entries by specifying their Entry IDs. Since Entry IDs are incremental, an attacker can trivially brute-force these IDs to duplicate and access restricted content across the system. This vulnerability is fixed in 5.9.0-beta.1 and 4.17.0-beta.1.
Title Craft has a Permission Bypass and IDOR in Duplicate Entry Action
Weaknesses CWE-639
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-04T17:35:08.922Z

Reserved: 2026-03-03T14:25:19.244Z

Link: CVE-2026-28782

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-04T17:16:21.533

Modified: 2026-03-04T17:16:21.533

Link: CVE-2026-28782

cve-icon Redhat

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cve-icon OpenCVE Enrichment

No data.

Weaknesses