CVE-2026-25728

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredLOW

User InteractionNONE

Published2/10/2026

Last Modified2/18/2026

Sourcenvd

Honeypot Sightings0

Affected Products

oxygenz:clipbucket

Weaknesses (CWE)

CWE-367

References

https://github.com/MacWarrior/clipbucket-v5/commit/09536e6e2ca6d69a2ee83190b588c0b8116dd16d(security-advisories@github.com)

https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-xq7c-m5r2-9wqj(security-advisories@github.com)

https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-xq7c-m5r2-9wqj(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.