CVE-2026-6257

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Source

https://cve.org/CVERecord?id=CVE-2026-6257

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6257.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-6257

Published

2026-04-20T19:09:45.927Z

Modified

2026-07-15T01:48:58.496218419Z

Severity

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

Summary

Vvveb CMS < v1.0.8.2 Remote Code Execution via Media Management

Details

Vvveb CMS v1.0.8.2 contains a remote code execution vulnerability in its media management functionality where a missing return statement in the file rename handler allows authenticated attackers to rename files to blocked extensions .php or .htaccess. Attackers can exploit this logic flaw by first uploading a text file and renaming it to .htaccess to inject Apache directives that register PHP-executable MIME types, then uploading another file and renaming it to .php to execute arbitrary operating system commands as the www-data user.

Database specific

{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-434"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6257.json"
}

References

Affected packages

Git / github.com/givanz/vvveb

Affected ranges

Type

GIT

Repo

https://github.com/givanz/vvveb

Events

Introduced

8b9db6a408ba35d8ac1dd078823c73f76584d78f

Fixed

6fb8eaa998265e33e8802cbc220d8859dbc144f2

Database specific

{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "1.0.8.2"
        },
        {
            "last_affected": "1.0.8.2"
        }
    ]
}

Affected versions

1.*

1.0.8.2

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6257.json"