EUVD-2026-18076
GHSA-g4pp-fhgf-8653
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
Lifecycle Timeline
4DescriptionGitHub Advisory
CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to version 0.31.0.0, the application fails to properly sanitize user-controlled input when adding Pages to navigation menus through the Menu Management functionality. Page-related data selected via the Pages section is stored server-side and rendered without proper output encoding. This stored payload is later rendered unsafely within administrative interfaces and public-facing navigation menus, leading to stored DOM-based cross-site scripting (XSS). This issue has been patched in version 0.31.0.0.
AnalysisAI
Stored cross-site scripting in CI4MS menu management allows authenticated attackers to inject malicious scripts that execute in administrative and public contexts with changed scope impact. Affecting all CI4MS versions prior to 0.31.0.0, attackers with low-level privileges can exploit inadequate input sanitization in the Pages-to-navigation-menu workflow to persistently embed DOM-based XSS payloads. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires authenticated user with Menu Management privileges in CI4MS versions prior to 0.31.0.0. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This vulnerability presents elevated real-world risk despite absence of confirmed active exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with low-level authenticated access to CI4MS (such as a content editor or compromised contributor account) navigates to the Menu Management interface and selects pages for inclusion in a navigation menu. During the page selection process, the attacker injects a malicious JavaScript payload into page metadata fields that lack sanitization-potentially through manipulated page titles, descriptions, or custom attributes. … |
| Remediation | Upgrade immediately to CI4MS version 0.31.0.0, which contains vendor-released patches addressing the stored XSS vulnerability in Menu Management functionality. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all CI4MS instances and document current versions. …
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