CVE-2026-6257

See a problem?
Please try reporting it to the source first.

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

2026-04-20T19:09:45Z

Modified

2026-10-28T02:30:49Z

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

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "1.0.8.2"
                },
                {
                    "last_affected":  "1.0.8.2"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandaloneSingleVersion"
        },
        {
            "range":  [
                {
                    "fixed":  "6fb8eaa998265e33e8802cbc220d8859dbc144f2"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

1.*

1.0.8.2

Database specific

source

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