CVE ID : CVE-2026-25728
Published : Feb. 10, 2026, 6:16 p.m. | 1 hour, 43 minutes ago
Description : 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.
Severity: 9.3 | CRITICAL
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Published : Feb. 10, 2026, 6:16 p.m. | 1 hour, 43 minutes ago
Description : 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.
Severity: 9.3 | CRITICAL
Visit the link for more details, such as CVSS details, affected products, timeline, and more…