{"id":"CVE-2026-77929","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-77929","summary":"ClipBucket v5 before 5.5.3-#182 contains a file upload vulnerability that allows authenticated users to achieve remote code execution by uploading a PHP file with valid image magic…","details":"ClipBucket v5 before 5.5.3-#182 contains a file upload vulnerability that allows authenticated users to achieve remote code execution by uploading a PHP file with valid image magic bytes through the photo upload endpoint. The FileUpload::manageFile() function in fileupload.class.php fails to update the file extension after MIME validation, allowing an attacker-controlled .php extension to persist on disk and execute as PHP via PHP-FPM when the uploaded file is retrieved.","published":"2026-09-18T15:17:13.287","modified":"2026-09-18T15:17:13.287","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/MacWarrior/clipbucket-v5/commit/61cce55ab26ef88fb782dfde47b44c17c56978cd","label":"MacWarrior/clipbucket-v5@61cce55"},"references":[{"type":"WEB","url":"https://github.com/MacWarrior/clipbucket-v5/commit/61cce55ab26ef88fb782dfde47b44c17c56978cd"},{"type":"WEB","url":"https://github.com/MacWarrior/clipbucket-v5/releases/tag/5.5.3-%23182"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/clipbucket-remote-code-execution-via-photo-upload-endpoint"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-18T15:17:13.287"}}