CVE-2026-103476

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Source

https://cve.org/CVERecord?id=CVE-2026-103476

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103476.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-103476

Published

2026-09-30T17:22:42Z

Modified

2026-10-02T03:46:59Z

Severity

6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

yii2-starter-kit through 4.2.0 Unauthorized File Download via attachment-download

Details

yii2-starter-kit through 4.2.0 fails to validate article publication status in the attachment-download endpoint, allowing unauthenticated attackers to download files from draft articles. Attackers can enumerate sequential attachment identifiers to retrieve files from unpublished articles without authentication or authorization checks.

Database specific

{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-639"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103476.json"
}

References

Affected packages

Git / github.com/yii-starter-kit/yii2-starter-kit

Affected ranges

Type

GIT

Repo

https://github.com/yii-starter-kit/yii2-starter-kit

Events

Introduced

Fixed

cc2c451e8c959c7300b04efea597706a38609f58

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "4.2.0"
        },
        {
            "introduced":  "yii2-starter-kit"
        },
        {
            "fixed":  "4.2.0"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

1.*

1.0.0

1.2.0

1.3.0

1.4.0

1.4.1

1.4.2

1.4.3

1.5.0

1.5.1

2.*

2.0.0

2.0.1

2.0.2

2.1.0

2.1.1

2.1.2

2.1.3

2.2.0

2.2.1

2.2.2

2.3.0

2.3.1

2.3.2

2.5.0

2.5.1

2.5.2

2.6.0

3.*

3.0.0

3.0.1

3.0.3

4.*

4.0.0

4.1.0

v3.*

v3.0.2

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103476.json"