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VulnerabilityPublished

CVE-2026-50543: xibosignage xibo-cms · Missing Authorization

Affects xibosignage xibo-cmsSource CVE Database V5

0

Not known to be exploited · CVSS 4.3 Medium : upgrade to 4.4.3 when convenient.

Data as of 28 Oct 2026, 15:57 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 4.4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade xibo-cms and xibosignage/xibo-cms to 4.4.3.

Affected software

ProductAffectedFixed in
xibosignagexibo-cmsAffected
  • <4.4.3
Fixed in
  • 4.4.3
GitHubxibosignage/xibo-cmspkg:github/xibosignage/xibo-cmsOther threatsAffected
  • <4.4.3
Fixed in
  • 4.4.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Xibo CMS to version 4.4.3 or later, where this missing authorization vulnerability is fixed. No additional mitigation is required once the system is updated.

Description

Xibo CMS versions prior to 4.4.3 contain a missing authorization vulnerability in the POST /displaygroup/criteria/{displayGroupId} endpoint. This flaw allows an authenticated user with limited privileges to update schedule criteria for any display via XMR, potentially altering playback behavior such as triggering content intended for specific weather conditions. Exploitation requires the Schedule Criteria feature to be enabled. The issue is resolved in version 4.4.3.

References

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