EUVD-2026-17213
GHSA-rpjr-985c-qhvm
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 within group and role management functionality. Multiple input fields (three distinct group-related fields) can be injected with malicious JavaScript payloads, which are then stored server-side. These stored payloads are later rendered unsafely within privileged administrative views without proper output encoding, leading to stored cross-site scripting (XSS) within the role and permission management context. This issue has been patched in version 0.31.0.0.
AnalysisAI
Stored cross-site scripting in CI4MS role/group management allows authenticated attackers to inject malicious JavaScript into three distinct administrative fields, achieving persistent code execution in privileged admin contexts with scope change impact. The vulnerability affects all versions prior to 0.31.0.0 and requires low-privilege authenticated access with no user interaction (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | CI4MS versions before 0.31.0.0. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The 9.1 CVSS score reflects critical severity due to the scope change and high confidentiality impact, but real-world risk requires contextual analysis. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with low-privilege authenticated access (such as a content contributor account) navigates to the group or role management interface and creates a new user group. In one of the three vulnerable fields (likely group name, description, or metadata fields), the attacker injects a malicious JavaScript payload such as a session-stealing script or keylogger. … |
| Remediation | Upgrade immediately to CI4MS version 0.31.0.0 or later, which implements proper input sanitization for group management fields and output encoding for administrative views rendering user-controlled data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all CI4MS deployments and current version numbers; restrict administrative access to trusted personnel only. …
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External POC / Exploit Code
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