CVE-2025-21623

Name: CVE-2025-21623
Creator: NVD / NIST
Published: 2025-01-07T16:15:40.69+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.09%

Last modified Jun 17, 2026

CVE-2025-21623 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 1.09% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.09%

61.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Oxygenz	Clipbucket	>= 5.3, < 5.5.1-238

References

https://github.com/MacWarrior/clipbucket-v5/commit/75d663f010cd8569eb9e278f030838174fb30188Patch
https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-ffhj-hprx-7qvrExploit, Vendor Advisory
https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-ffhj-hprx-7qvrExploit, Vendor Advisory

Timeline

Published: Jan 7, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-21623?

How severe is CVE-2025-21623?

CVE-2025-21623 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.09% probability of exploitation in the next 30 days.

How do I fix CVE-2025-21623?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-21623?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST