CVE-2026-33354
WWBN AVideo is an open source video platform.
Published Mar 23, 2026 · corrected/updated Jun 17, 2026 · wwbn avideo · evidence confidence medium
WWBN AVideo is an open source video platform. In versions up to and including 26.0, accepts a requester-controlled 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 . That helper allows files under broad server directories including , the application root, cache, tmp, and , only rejecting 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.
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
CVE-2026-33354 is a medium public vulnerability record for wwbn avideo. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether wwbn avideo is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: wwbn/avideo. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: CVSS 6.5. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-73. Sources contributing to this record: cve_org, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Not listed as known exploited in CISA KEV. Not in the CISA KEV catalog.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Mar 23, 2026 · NIST NVD
Detected
WWBN AVideo is an open source video platform. In versions up to and including 26.0, accepts a requester-controlled 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 . That helper allows files under broad server directories including , the application root, cache,
Jun 17, 2026 · NIST NVD
Updated
WWBN AVideo is an open source video platform. In versions up to and including 26.0, accepts a requester-controlled 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 . That helper allows files under broad server directories including , the application root, cache,
Affected
- cpe wwbn/avideoversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-33354
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-33354
WWBN AVideo is an open source video platform. In versions up to and including 26.0, accepts a requester-controlled parameter intended for staged upload chunks. Instead of restricting that path to trusted server-generated chunk lo
nvd.nist.gov