CVE-2026-50539
Xibo is an open source digital signage platform with a web content management system and Windows…
- Risk score
- 45/100
- CVSS
- 6.5 v3.1
- Exploit chance (30 days)
- 0.4%
- Published
- 28 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 admini…
- Affected
- See advisory
- Fix
- Upgrade the product to 4.4.3 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.5 medium
References
- https://github.com/xibosignage/xibo-cms/commit/13ed6e6bf3c15a93089b4fd2148379888ee82d74
- https://github.com/xibosignage/xibo-cms/commit/1dcc3f2de6dc7861e7dbb5148e94f14ebb1513b3
- https://github.com/xibosignage/xibo-cms/pull/3487
- https://github.com/xibosignage/xibo-cms/releases/tag/4.4.3
- https://github.com/xibosignage/xibo-cms/releases/tag/4.5.0-beta
- https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-p4pg-v57g-7jf6
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.
Last activity 28 Oct 2026. Patch Forecast updates every hour.