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CVE-2026-28782GHSA-JXM3-PMM2-9GF6

Craft has a Permission Bypass and IDOR in Duplicate Entry Action

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.9.0-beta.1, 4.17.0-beta.1
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • craftcms cms

    From 5.0.0-RC1 · fixed in 5.9.0-beta.1; From 4.0.0-RC1 · fixed in 4.17.0-beta.1

  • craftcms/cmsPackagist

    From 5.0.0-RC1 · fixed in 5.9.0-beta.1

  • craftcms/cmsPackagist

    From 4.0.0-RC1 · fixed in 4.17.0-beta.1

References 2

GitHub · craftcms/cms