ClipBucket v5 is an open source video sharing platform. Prior to 5.5.3 - #40, a Time-of-Check to Time-of-Use (TOCTOU) race condition vulnerability exists in ClipBucket's avatar and background image upload functionality. The application moves uploaded files to a web-accessible location before validating them, creating a window where an attacker can execute arbitrary PHP code before the file is deleted. The uploaded file was moved to a web-accessible path via move_uploaded_file(), then validated via ValidateImage(). If validation failed, the file was deleted via @unlink(). This vulnerability is fixed in 5.5.3 - #40.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XOxygenz Clipbucket
APPOxygenz5.3 – 5.5.3-40 (bez)
Related vulnerabilities
Blind SQL Injection w ClipBucket v5 — sekcja komentarzy kanału
ClipBucket 5.5.2 — hardcoded domyślne dane logowania w panelu admina
ClipBucket V5 — nieograniczony upload plików PHP przez funkcję playlist
PHP Deserialization w ClipBucket V5 — zdalne wykonanie kodu
PHP Deserialization w ClipBucket V5 umożliwia zdalne wykonanie kodu