Stored Blind Cross-Site Scripting in CI4MS by CodeIgniter 4
CVE-2026-34563

9.1CRITICAL

Key Information:

Vendor

Ci4-cms-erp

Status
Ci4ms
Vendor
CVE Published:
1 April 2026

What is CVE-2026-34563?

The CI4MS application prior to version 0.31.0.0 has a vulnerability that permits an attacker to inject malicious JavaScript code into backup filenames during the upload process. This occurs due to the application's failure to properly sanitize user input related to backup uploads and metadata processing. The malicious payload is stored and later rendered unsafely in various views within the backup management system, allowing for stored blind cross-site scripting attacks. This issue can compromise user data and application integrity, but it has been remediated in version 0.31.0.0.

Affected Version(s)

ci4ms < 0.31.0.0

References

https://github.com/ci4-cms-erp/ci4ms/security/advisories/...
x_refsource_CONFIRM
https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.0.0
x_refsource_MISC

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.