CVE-2026-33478
CriticalExploitedPublic exploitAVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure, Database Dump, and Command Injection
Published Mar 20, 2026 · Updated Aug 12, 2026 · Also known as GHSA-687q-32c6-8x68
Key Facts
Patch immediately- CVE-2026-33478 is a critical-severity vulnerability (CVSS 10.0 v3.1) affecting AVideo (Wwbn), wwbn/avideo (composer).
- It is exploited in the wild, listed in Industry KEV feed since Apr 30, 2026. Public exploit code is available.
- EPSS estimates a 11% probability of exploitation in the next 30 days.
- Fixed versions are available, including AVideo 26.0.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
10.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
11%
Higher than 95.9% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-33478 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
WWBN AVideo is an open source video platform. In versions up to and including 26.0, multiple vulnerabilities in AVideo's CloneSite plugin chain together to allow a completely unauthenticated attacker to achieve remote code execution. The clones.json.php endpoint exposes clone secret keys without authentication, which can be used to trigger a full database dump via cloneServer.json.php. The dump contains admin password hashes stored as MD5, which are trivially crackable. With admin access, the attacker exploits an OS command injection in the rsync command construction in cloneClient.json.php to execute arbitrary system commands. Commit c85d076375fab095a14170df7ddb27058134d38c contains a patch.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Apr 30, 2026 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| AVideoWwbn | >= <= 26.0 | 26.0 |
| wwbn/avideocomposer | See advisory | n/a |
Patched Releases
AVideo
26.0
Timeline
Publicly disclosed
Mar 20, 2026
Added to Industry KEV feed
Apr 30, 2026
Last updated
Aug 12, 2026
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
- CWE-284 Improper Access Control
References
- advisoryGHSA advisory
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33478.json
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-33478
- otherhttps://github.com/WWBN/AVideo
- otherhttps://github.com/WWBN/AVideo/commit/c85d076375fab095a14170df7ddb27058134d38c
FAQ
Common Questions.
WWBN AVideo is an open source video platform.
Affected: AVideo (Wwbn) versions >= <= 26.0; wwbn/avideo (composer). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Apr 30, 2026.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including AVideo 26.0.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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