{"id":"CVE-2026-88419","aliases":["EUVD-2026-84851","GHSA-r6cc-qh78-7796"],"status":"published","title":"An unrestricted upload of files with a dangerous type in the thumbnail-upload endpoint (/index...","description":"An unrestricted upload of files with a dangerous type in the thumbnail-upload endpoint (/index.php?m=member\u0026f=article\u0026v=thumbUpload) of WuzhiCMS 5.0.0 allows an authenticated low-privileged member to upload a crafted .php file and execute arbitrary PHP code on the server, because the stored file extension is taken verbatim from the client-supplied filename with no extension allowlist or content validation and the file is written to the web-accessible uploadfile/ directory, from which the web server executes PHP.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00479,"percentile":0.41829,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2026-09-22T00:00:00Z","modified":"2026-09-24T21:25:27Z","references":[{"url":"https://github.com/15536818056/CVE/issues/6","tags":["exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88419"},{"url":"https://github.com/advisories/GHSA-r6cc-qh78-7796"}],"sources":{"cve":[{"id":"CVE-2026-88419","description":"An unrestricted upload of files with a dangerous type in the thumbnail-upload endpoint (/index.php?m=member\u0026f=article\u0026v=thumbUpload) of WuzhiCMS 5.0.0 allows an authenticated low-privileged member to upload a crafted .php file and execute arbitrary PHP code on the server, because the stored file extension is taken verbatim from the client-supplied filename with no extension allowlist or content validation and the file is written to the web-accessible uploadfile/ directory, from which the web server executes PHP.","status":"published","published":"2026-09-22T00:00:00Z","modified":"2026-09-22T19:43:01.271Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T13:42:04.39372Z"}],"euvd":[{"id":"EUVD-2026-84851","description":"An unrestricted upload of files with a dangerous type in the thumbnail-upload endpoint (/index.php?m=member\u0026f=article\u0026v=thumbUpload) of WuzhiCMS 5.0.0 allows an authenticated low-privileged member to upload a crafted .php file and execute arbitrary PHP code on the server, because the stored file extension is taken verbatim from the client-supplied filename with no extension allowlist or content validation and the file is written to the web-accessible uploadfile/ directory, from which the web server executes PHP.","status":"published","published":"2026-09-22T00:00:00Z","modified":"2026-09-22T19:43:01Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T17:28:01.71506Z"}],"ghsa":[{"id":"GHSA-r6cc-qh78-7796","title":"An unrestricted upload of files with a dangerous type in the thumbnail-upload endpoint (/index...","description":"An unrestricted upload of files with a dangerous type in the thumbnail-upload endpoint (/index.php?m=member\u0026f=article\u0026v=thumbUpload) of WuzhiCMS 5.0.0 allows an authenticated low-privileged member to upload a crafted .php file and execute arbitrary PHP code on the server, because the stored file extension is taken verbatim from the client-supplied filename with no extension allowlist or content validation and the file is written to the web-accessible uploadfile/ directory, from which the web server executes PHP.","status":"published","published":"2026-09-22T21:31:29Z","modified":"2026-09-22T21:31:35Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:12:19.294085Z"}],"nvd":[{"id":"CVE-2026-88419","description":"An unrestricted upload of files with a dangerous type in the thumbnail-upload endpoint (/index.php?m=member\u0026f=article\u0026v=thumbUpload) of WuzhiCMS 5.0.0 allows an authenticated low-privileged member to upload a crafted .php file and execute arbitrary PHP code on the server, because the stored file extension is taken verbatim from the client-supplied filename with no extension allowlist or content validation and the file is written to the web-accessible uploadfile/ directory, from which the web server executes PHP.","status":"published","published":"2026-09-22T20:17:11.083Z","modified":"2026-09-24T21:25:27.05Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:12:50.703874Z"}]}}