PT-2026-27169 · Avideo · Avideo

Restriction · Published 2026-03-23 · Updated 2026-03-25 · CVE-2026-33647

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions AVideo versions up to and including 26.0

Description AVideo is an open source video platform. 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. The vulnerable component is the ImageGallery::saveFile() function.

Recommendations Upgrade to commit 345a8d3ece0ad1e1b71a704c1579cbf885d8f3ae.

Exploit

Fix

RCE

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2026-33647

GHSA-WXJW-PHJ6-G75W

Affected Products

Avideo

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33647.json · Exploit
• https://github.com/WWBN/AVideo/security/advisories/GHSA-wxjw-phj6-g75w · Vendor Advisory
• https://github.com/WWBN/AVideo/commit/345a8d3ece0ad1e1b71a704c1579cbf885d8f3ae · Patch
• https://osv.dev/vulnerability/GHSA-wxjw-phj6-g75w · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-33647 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33647 · Security Note
• https://github.com/WWBN/AVideo · Note
• https://twitter.com/TheHackerWire/status/2036171073373581580 · Twitter Post
• https://twitter.com/CveFindCom/status/2036166798660247707 · Twitter Post
• https://twitter.com/cyberbivash/status/2036178944408297849 · Twitter Post