{"id":"CVE-2026-77929","summary":"ClipBucket \u003c 5.5.3-#182 Remote Code Execution via Photo Upload Endpoint","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.","modified":"2026-09-20T11:47:26.983692084Z","published":"2026-09-18T14:23:40.318Z","database_specific":{"cwe_ids":["CWE-434"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77929.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77929.json"},{"type":"ADVISORY","url":"https://github.com/MacWarrior/clipbucket-v5/releases/tag/5.5.3-%23182"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77929"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/clipbucket-remote-code-execution-via-photo-upload-endpoint"},{"type":"FIX","url":"https://github.com/MacWarrior/clipbucket-v5/commit/61cce55ab26ef88fb782dfde47b44c17c56978cd"},{"type":"PACKAGE","url":"https://github.com/MacWarrior/clipbucket-v5"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/macwarrior/clipbucket-v5","events":[{"introduced":"0"},{"fixed":"61cce55ab26ef88fb782dfde47b44c17c56978cd"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"5.5.3-#182"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["5.5.3-#153","5.5.3-#149","5.5.3-#145","5.5.3-#136","5.5.3-#104","5.5.3-#93","5.5.3-#61","5.5.3-#50","5.5.3-#46","5.5.3-#10","5.5.2","5.5.2-#187","5.5.2-#182","5.5.2-#164","5.5.2-#163","5.5.2-#162","5.5.2-#152","5.5.2-#147","5.5.2-#140","5.5.2-#138","5.5.2-#135","5.5.2-#133","5.5.2-#129","5.5.2-#123","5.5.2-#120","5.5.2-#117","5.5.2-#114","5.5.2-#106","5.5.2-#103","5.5.2-#98","5.5.2-#90","5.5.2-#86","5.5.2-#82","5.5.2-#74","5.5.2-#69","5.5.2-#58","5.5.2-#45","5.5.2-#38","5.5.2-#25","5.5.2-#4","5.5.1","5.5.0","5.4.1","5.4.0","5.3.1","5.3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77929.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}