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CVE-2026-50539EUVD-2026-112139GHSA-P4PG-V57G-7JF6

Xibo: Missing Object-Level Authorization on /notification/export/{id} Allows Authenticated Users to Download Arbitrary Attachments

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.4.3
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

Xibo, an open source digital signage platform with a web content management system, is affected. An authenticated user can download file attachments from notifications created by other users, including administrators, because the export feature does not check whether the user is allowed to access those specific notifications.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

Xibo is an open source digital signage platform with a web content management system and Windows display player software. Prior to 4.4.3, missing object-level authorization on `/notification/export/{id}` allows an authenticated user to download attachments from any notification, including notifications created by administrators, by iterating over `sequential notification IDs`. Exploitation requires access to the `Notification Centre` to view past notifications, a privilege granted to non-administrators as standard. This issue is fixed in version 4.4.3.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  4. Record last updated

Affected versions

  • xibosignage xibo-cms

    fixed in 4.4.3

References 6

GitHub · xibosignage/xibo-cms