CVE-2026-28782
published 2026-03-04CVE-2026-28782: 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…
PriorityP423medium4.3CVSS 3.1
AVNACLPRLUINSUCNILAN
EPSS
0.23%
14.2th percentile
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.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| craftcms | cms | — | — |
| craftcms | cms | — | — |
| craftcms | cms | >= 4.0.0-RC1 < 4.17.0-beta.1 | 4.17.0-beta.1 |
| craftcms | cms | >= 5.0.0-RC1 < 5.9.0-beta.1 | 5.9.0-beta.1 |
| craftcms | craft_cms | < 4.17.0 | 4.17.0 |
| craftcms | craft_cms | < 5.9.0 | 5.9.0 |
| craftcms | craft_cms | — | — |
| craftcms | craft_cms | — | — |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
nvdv4.05.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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GHSA
Craft CMS has Permission Bypass and IDOR in Duplicate Entry Action
ghsa·2026-03-03
CVE-2026-28782 [MEDIUM] CWE-639 Craft CMS has Permission Bypass and IDOR in Duplicate Entry Action
Craft CMS has Permission Bypass and IDOR in Duplicate Entry Action
## Description
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.
## Proof of Concept
### Prerequisites
- A user with "View Entries" permission on any section.
### Steps to Reproduce
1. Log in as a user with minimal permissions ("Vi
OSV
Craft CMS has Permission Bypass and IDOR in Duplicate Entry Action
osv·2026-03-03
CVE-2026-28782 [MEDIUM] Craft CMS has Permission Bypass and IDOR in Duplicate Entry Action
Craft CMS has Permission Bypass and IDOR in Duplicate Entry Action
## Description
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.
## Proof of Concept
### Prerequisites
- A user with "View Entries" permission on any section.
### Steps to Reproduce
1. Log in as a user with minimal permissions ("Vi
No detection rules found.
No public exploits indexed.
2026-03-04
Published