CVE-2025-64339: MacWarrior clipbucket-v5 · Cross-site Scripting
Affects MacWarrior clipbucket-v5Source CVE Database V5
Public exploit available · CVSS 7.2 High · fixed in 5.5.2 : patch MacWarrior clipbucket-v5 as a priority.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.5.2
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 7 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubmacwarrior/clipbucket-v5pkg:github/macwarrior/clipbucket-v5Other threats | Affected– | Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
- Upgrade ClipBucket v5 installations to version 5.5.2-#147 or later, where the vulnerability is patched.
- If immediate upgrade is not possible, implement input validation and output encoding on the Playlist Name field to neutralize HTML and JavaScript content.
- Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts on playlist pages.
- Conduct regular security audits and penetration testing focusing on user input fields to detect similar injection flaws.
- Restrict playlist creation and modification permissions to trusted users only, minimizing exposure.
- Educate administrators and users to recognize suspicious playlist names or unexpected behaviors.
- Monitor logs for unusual activity related to playlist management and user sessions.
- Consider implementing web application firewalls (WAF) with rules to detect and block XSS payloads targeting ClipBucket. These measures together reduce the risk of exploitation and limit potential damage.
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.