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CVE-2026-28782

Craft has a Permission Bypass and IDOR in Duplicate Entry Action

Published: Mar 4, 2026Updated: Mar 5, 2026 Sources: CVE List NVD GHSACWE-639
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.2%
Top 86.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-639

Affected Products

craft cmscraftcmsWeb & CMS Plugins
craftcms/cmsPackagistOSS Libraries
cmscraftcmsWeb & CMS Plugins
craftcmscommercialNZWeb & CMS Plugins
packagistpackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/craftcms/cms/commit/fb61a91357f5761c852400185ba931f51d82783d
github.com
https://github.com/craftcms/cms/security/advisories/GHSA-jxm3-pmm2-9gf6
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-28782
nvd.nist.gov
and 1 more references View all →

Timeline

Published
Mar 4, 2026
Last Updated
Mar 5, 2026

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