What is CVE-2025-21623?

CVE-2025-21623 is a high-severity vulnerability in Macwarrior Clipbucket-v5, classified under Path Traversal. CVSS score: 7.5/10. Published 2025-01-07.

How severe is CVE-2025-21623?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2025-21623 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Macwarrior Clipbucket-v5

CVE-2025-21623

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.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.014 (80.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Macwarrior Clipbucket-v5 — versions < 5.5.1 - 238

Weakness classification (CWE)

Public proof-of-concept exploits

kawing-ho/advisories

References

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

Frequently asked questions

What is CVE-2025-21623?: CVE-2025-21623 is a high-severity vulnerability in Macwarrior Clipbucket-v5, classified under Path Traversal. CVSS score: 7.5/10. Published 2025-01-07.
How severe is CVE-2025-21623?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2025-21623 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.