CVE-2026-34559
Description
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 creating or editing blog tags. An attacker can inject a malicious JavaScript payload into the tag name field, which is then stored server-side. This stored payload is later rendered unsafely across public tag pages and administrative interfaces without proper output encoding, leading to stored cross-site scripting (XSS). This issue has been patched in version 0.31.0.0.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
ci4-cms-erp/ci4msPackagist | < 0.31.0.0 | 0.31.0.0 |
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-4333-387x-w245nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-4333-387x-w245ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-34559ghsaADVISORY
- github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.0.0nvdRelease NotesWEB
News mentions
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