CVE-2026-34559

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Source
https://cve.org/CVERecord?id=CVE-2026-34559
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34559.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-34559
Aliases
Published
2026-04-01T21:20:51.450Z
Modified
2026-07-08T08:02:02.231559461Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L CVSS Calculator
Summary
CI4MS: Blogs Tags Full Account Takeover for All-Roles & Privilege-Escalation via Stored DOM XSS
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34559.json",
    "cwe_ids": [
        "CWE-79"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/ci4-cms-erp/ci4ms

Affected ranges

Type
GIT
Repo
https://github.com/ci4-cms-erp/ci4ms
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
954622ef3d8527cde0b66b8460c26cb5cd0bab15
Database specific 
{
    "cpe": "cpe:2.3:a:ci4-cms-erp:ci4ms:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.31.0.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.21.0
0.21.1
0.21.2
0.21.3
0.21.3.1
0.21.3.2
0.21.3.3
0.21.3.4
0.21.3.5
0.21.3.6
0.21.3.7
0.23.0.0
0.23.1.0
0.24.0.0
0.24.0.16
0.24.0.18
0.24.0.19
0.24.0.20
0.24.0.27
0.24.0.42
0.24.0.45
0.24.0.60
0.25.0.0
0.25.0.1
0.25.0.2
0.25.0.30
0.25.0.39
0.25.0.43
0.25.1.0
0.25.2.0
0.25.3.0
0.26.0.0
0.26.1.0
0.26.2.0
0.26.3.0
0.26.3.1
0.26.3.2
0.26.3.3
0.26.3.4
0.27.0.0
0.28.0.0
0.28.3.0
0.28.4.0
0.28.5.0
0.28.6.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34559.json"