What’s Vulnerable › Vulnerabilities

CVE-2025-21623: ClipBucket V5 Unauthenticated Template Directory Update to Denial-of-Service

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-01-07 · updated 2026-06-17
• Weakness: CWE-22

Description

ClipBucket V5 provides open source video hosting with PHP. Prior to 5.5.1 - 238, ClipBucket V5 allows unauthenticated attackers to change the template directory via a directory traversal, which results in a denial of service.

Affected products

• MacWarrior clipbucket-v5: from 5.3 before 5.5.1-238 — fixed in 5.5.1-238

How to fix

Upgrade to a fixed version: MacWarrior clipbucket-v5 5.5.1-238. Check the vendor advisory for mitigations.

References

• https://github.com/MacWarrior/clipbucket-v5/commit/75d663f010cd8569eb9e278f030838174fb30188
• https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-ffhj-hprx-7qvr
• https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-ffhj-hprx-7qvr

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