cvedb.io
CVE-2026-34563
CRITICAL · CVSS 9.1
EPSS exploitation probability: 0%
Published 2026-04-01T22:16:19.800 · Last modified 2026-06-17T10:39:14.600

Summary

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 handling backup uploads and processing backup metadata. An attacker can inject a malicious JavaScript payload into the backup filename via the uploaded xss.sql, which uses SQL functionality to insert the XSS payload server-side. This stored payload is later rendered unsafely in multiple backup management views without proper output encoding, leading to stored blind cross-site scripting (Blind XSS). This issue has been patched in version 0.31.0.0.

Affected products

ci4-cms-erp — ci4ms

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.