CVE-2026-50539
mediumXibo is an open source digital signage platform with a web content management system and Windows display player software.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/xibosignage/xibo-cms/commit/13ed6e6bf3c15a93089b4fd2148379888ee82d74 security-advisories@github.com
- https://github.com/xibosignage/xibo-cms/commit/1dcc3f2de6dc7861e7dbb5148e94f14ebb1513b3 security-advisories@github.com
- https://github.com/xibosignage/xibo-cms/pull/3487 security-advisories@github.com
- https://github.com/xibosignage/xibo-cms/releases/tag/4.4.3 security-advisories@github.com
- https://github.com/xibosignage/xibo-cms/releases/tag/4.5.0-beta security-advisories@github.com
- https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-p4pg-v57g-7jf6 security-advisories@github.com