Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Craftcms | Craft Cms | < 4.17.0 |
Related Weaknesses (CWE)
References
- https://github.com/craftcms/cms/commit/fb61a91357f5761c852400185ba931f51d82783dPatch
- https://github.com/craftcms/cms/security/advisories/GHSA-jxm3-pmm2-9gf6ExploitPatchVendor Advisory
FAQ
What is CVE-2026-28782?
CVE-2026-28782 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 spec...
How severe is CVE-2026-28782?
CVE-2026-28782 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-28782?
Check the references section above for vendor advisories and patch information. Affected products include: Craftcms Craft Cms.