Is CVE-2026-33354 actively exploited?

No active exploitation of CVE-2026-33354 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33354 be exploited remotely?

Yes. CVE-2026-33354 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-33354?

CVE-2026-33354 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-33354

CWE-73Published: March 23, 2026· Updated: Mar 24, 2026

6.5

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.4th

Official 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`, only rejecting `.php` files. For an authenticated uploader editing their own video, this becomes an arbitrary local file read. The endpoint copies the attacker-chosen local file into the attacker's public video storage path, after which it can be downloaded over HTTP. Commit 59bbd601a3f65a5b18c1d9e4eb11471c0a59214f contains a patch for the issue.

NVD Source

Technical Analysis

CVE-2026-33354 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.