HIGH

CVE-2025-21623

CVSS v3

7.5

HIGH

EPSS Score

1.2 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2025-21623 yet.

Full record on NVD

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.

Technical details

Published: 2025-01-07

Frequently asked questions

What is CVE-2025-21623?

Is CVE-2025-21623 actively exploited?

Active exploitation of CVE-2025-21623 has not been confirmed. Its EPSS score was 1.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-21623?

CVE-2025-21623 has a CVSS v3 base score of 7.5 (HIGH severity).

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