CVE-2025-64339: clipbucket XSS — Exploit & Fix

Description

ClipBucket v5 is an open source video sharing platform. In versions 5.5.2-#146 and below, the Manage Playlists feature is vulnerable to stored Cross-site Scripting (XSS),specifically in the Playlist Name field. An authenticated low-privileged user can create a playlist with a malicious name containing HTML/JavaScript code, which is rendered unescaped on playlist detail and listing pages. This results in arbitrary JavaScript execution in every viewer’s browser, including administrators. This issue is fixed in version 5.5.2-#147.

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CVSS v3.1 Score

5.4

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
oxygenz	clipbucket	5.3 — 5.5.2-147

References

Advisories & Patches

https://github.com/MacWarrior/clipbucket-v5/commit/8e3cf79ce2721fbebde68a05a9a1a6319f086bcc https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-c695-m4g4-v3fv

Exploits

https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-c695-m4g4-v3fv

Frequently Asked Questions

What is CVE-2025-64339? +

ClipBucket v5 is an open source video sharing platform. In versions 5.5.2-#146 and below, the Manage Playlists feature is vulnerable to stored Cross-site Scripting (XSS),specifically in the Playlist Name field. An authenticated low-privileged user can create a playlist with a malicious name containing HTML/JavaScript code, which is rendered unescaped on playlist detail and listing pages. This results in arbitrary JavaScript execution in every viewer’s browser, including administrators. This issue is fixed in version 5.5.2-#147. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2025-64339? +

CVE-2025-64339 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-64339? +

CVE-2025-64339 affects products from oxygenz, specifically: clipbucket. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-64339? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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