Xibo CMS Missing Authorization in Module::settingsForm due to PHP operator precedence (CVE-2026-52730) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-52730

Xibo CMS Missing Authorization in Module::settingsForm due to PHP operator precedence

Answer in brief

CVE-2026-52730 records a Unknown severity vulnerability in Xibo CMS Missing Authorization in Module::settingsForm due to PHP operator precedence. The current sources do not mark it as known exploited. The current feed maps xibosignage/xibo-cms (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 31, 2026Updated Aug 31, 2026Source checked Aug 31, 2026First seen by HOL Aug 31, 2026Material review Aug 31, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps xibosignage/xibo-cms (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
xibosignage/xibo-cmsgeneric	< 4.4.3	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for xibosignage/xibo-cms.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 31, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 31, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 31, 2026

Sources and claim methodology

GitHub security advisorygithub.com

Upstream source 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 Authorization in Module::settingsForm allows to view (not change) super admin-restricted module settings and leak the full module entity. Exploitation of the vulnerability is possible on behalf of an authorized user who has access to the Module View feature, which are not granted to non-admins as standard. Users should upgrade to version 4.4.3 which fixes this issue. Upgrading to a fixed version is necessary to remediate. Users unable to upgrade should revoke such privileges from users they do not trust.

Quoted source text, attributed separately from HOL analysis.