{"id":"CVE-2026-37504","details":"Sensitive server_token exposed via GET parameter in V2Board thru 1.7.4. In app/Http/Controllers/Server/UniProxyController.php, the server authentication token is accepted via GET parameter transmission. The token appears in URLs such as /api/v1/server/UniProxy/user?token=SECRET, causing it to be recorded in web server access logs, browser history, HTTP Referer headers, and proxy/CDN logs. An attacker who gains access to any log source can extract the token and impersonate a proxy server node, potentially intercepting all user traffic.","modified":"2026-08-12T03:51:41.919364046Z","published":"2026-05-01T00:00:00Z","database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/37xxx/CVE-2026-37504.json"},"references":[{"type":"WEB","url":"https://gist.github.com/sgInnora/1330e1a82caa79906eec55eeff2c99b9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/37xxx/CVE-2026-37504.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-37504"},{"type":"PACKAGE","url":"https://github.com/v2board/v2board"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/v2board/v2board","events":[{"introduced":"0"},{"last_affected":"0ca47622a50116d0ddd7ffb316b157afb57d25e8"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:v2board:v2board:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"1.7.4"}]}}],"versions":["1.7.4","1.7.3","1.7.2","1.7.1","1.7.0","1.6.1","1.6.0","1.5.5","1.5.4","1.5.3","1.5.2","1.5.1","1.5.0","1.4.3","1.4.2","1.4.1","1.4","1.3.2","1.3.1","1.3","1.2.5","1.2.4","1.2.3","1.2.2","1.2.1","1.2","1.1.2","1.1.1","1.1","1.0.3","1.0.2","1.0.1","1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-37504.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AC:H/AV:N/A:N/C:H/I:N/PR:N/S:U/UI:R"}]}