CVE-2026-33647
Last modified
CVE-2026-33647 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `ImageGallery::saveFile()` method validates uploaded file content using `finfo` MIME type detection but derives the saved filename extension from the user-supplied original filename without an allowlist check. EPSS estimates a 0.64% chance of exploitation in the next 30 days.
Description
WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `ImageGallery::saveFile()` method validates uploaded file content using `finfo` MIME type detection but derives the saved filename extension from the user-supplied original filename without an allowlist check. An attacker can upload a polyglot file (valid JPEG magic bytes followed by PHP code) with a `.php` extension. The MIME check passes, but the file is saved as an executable `.php` file in a web-accessible directory, achieving Remote Code Execution. Commit 345a8d3ece0ad1e1b71a704c1579cbf885d8f3ae contains a patch.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Wwbn | Avideo | <= 26.0 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-33647?
How severe is CVE-2026-33647?
How do I fix CVE-2026-33647?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-33641Glances is an open-source system cross-platform monitoring t…7.8
- CVE-2026-33642Kitty is a cross-platform GPU based terminal. In versions 0.…9.8
- CVE-2026-33643SQL Injection vulnerability in SchemaHero 0.23.0 via the col…7.4
- CVE-2026-33644Lychee is a free, open-source photo-management tool. Prior t…4.3
- CVE-2026-33645Fireshare facilitates self-hosted media and link sharing. In…8.1
- CVE-2026-33646mise manages dev tools like node, python, cmake, and terrafo…9.6
- CVE-2026-33648WWBN AVideo is an open source video platform. In versions up…8.8
- CVE-2026-33649WWBN AVideo is an open source video platform. In versions up…8.8
- CVE-2026-33650WWBN AVideo is an open source video platform. In versions up…7.6
- CVE-2026-33651WWBN AVideo is an open source video platform. In versions up…8.8
- CVE-2026-33653Ulloady is a file uploader script with multi-file upload sup…5.4
- CVE-2026-33654nanobot is a personal AI assistant. Prior to version 0.1.6, …9.8
Are you affected by CVE-2026-33647?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST