CVE-2026-37503

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Source

https://cve.org/CVERecord?id=CVE-2026-37503

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-37503.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-37503

Published

2026-05-01T00:00:00Z

Modified

2026-07-15T01:48:51.506191477Z

Severity

6.9 (Medium) CVSS_V3 - CVSS:3.1/AC:L/AV:N/A:N/C:H/I:L/PR:H/S:C/UI:R CVSS Calculator

Summary

[none]

Details

Cross-Site Scripting (XSS) in V2Board thru 1.7.4. The custom_html field in theme configuration is rendered using Blade unescaped output in public/theme/v2board/dashboard.blade.php. An admin can inject arbitrary JavaScript via the saveThemeConfig API. All site visitors execute the payload, enabling cookie theft, session hijacking, or phishing.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/37xxx/CVE-2026-37503.json",
    "cna_assigner": "mitre"
}

References

Affected packages

Git / github.com/v2board/v2board

Affected ranges

Type

GIT

Repo

https://github.com/v2board/v2board

Events

Introduced

Last affected

0ca47622a50116d0ddd7ffb316b157afb57d25e8

Database specific

{
    "cpe": "cpe:2.3:a:v2board:v2board:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.7.4"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

1.*

1.0.0

1.0.1

1.0.2

1.0.3

1.1

1.1.1

1.1.2

1.2

1.2.1

1.2.2

1.2.3

1.2.4

1.2.5

1.3

1.3.1

1.3.2

1.4

1.4.1

1.4.2

1.4.3

1.5.0

1.5.1

1.5.2

1.5.3

1.5.4

1.5.5

1.6.0

1.6.1

1.7.0

1.7.1

1.7.2

1.7.3

1.7.4

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-37503.json"