CVE-2026-33354 — External Control of File Name or Path in Avideo

CWE-73 — External Control of File Name or Path4 documents4 sources
Severity
6.5MEDIUMNVD
EPSS
0.0%
top 89.46%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Wwbn Avideo
Timeline
Latest updateMar 19
PublishedMar 23

Description

WWBN AVideo is an open source video platform. In versions up to and including 26.0, `POST /objects/aVideoEncoder.json.php` accepts a requester-controlled `chunkFile` parameter intended for staged upload chunks. Instead of restricting that path to trusted server-generated chunk locations, the endpoint accepts arbitrary local filesystem paths that pass `isValidURLOrPath()`. That helper allows files under broad server directories including `/var/www/`, the application root, cache, tmp, and `videos`…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages2 packages

▶NVDwwbn/avideo26.0
▶Packagistwwbn/avideo26.0

Patches

Patch: github.com ↗

🔴Vulnerability Details

2
OSV
AVideo has an authenticated arbitrary local file read via `chunkFile` path injection in `aVideoEncoder.json.php`↗2026-03-19
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GHSA
AVideo has an authenticated arbitrary local file read via `chunkFile` path injection in `aVideoEncoder.json.php`↗2026-03-19
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🕵️Threat Intelligence

1
Wiz
CVE-2026-33354 Impact, Exploitability, and Mitigation Steps | Wiz↗
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