CVE-2026-33319 AVideo Vulnerable to OS Command Injection via Unescaped URL in LinkedIn Video Upload Shell Command
Attackers can execute arbitrary OS commands on the server by injecting malicious URLs into the LinkedIn video upload feature.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-33319?
CVE-2026-33319 is a medium-severity command injection vulnerability in Wwbn Avideo, published on 22 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
WWBN AVideo is an open source video platform. Prior to version 26.0, the `uploadVideoToLinkedIn()` method in the SocialMediaPublisher plugin constructs a shell command by directly interpolating an upload URL received from LinkedIn's API response, without sanitization via `escapeshellarg()`. If an attacker can influence the LinkedIn API response (via MITM, compromised OAuth token, or API compromise), they can inject arbitrary OS commands that execute as the web server user. Version 26.0 contains a fix for the issue.
Weakness: CWE-78
Which versions are affected by CVE-2026-33319?
2 open source packages ship an affected version, including wwbn/avideo. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
wwbn/avideo Packagist | All versions to 25.0 | None |
wwbn/avideo Packagist | All versions to 25.0 | None |
Products include Wwbn Avideo.
How do I fix CVE-2026-33319?
No fix has been published for CVE-2026-33319 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-33319 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33319 exists.
Other vulnerabilities in Wwbn Avideo
- CVE-2026-40911 WWBN AVideo YPTSocket WebSocket Broadcast Relay Leads to Unauthenticated Cross-User JavaScript Execution via Client-Side eval() Sinks
- CVE-2026-33478 AVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure, Database Dump, and Command Injection
- CVE-2022-30534 Command injection in AVideo
- CVE-2022-30547 Path traversal in AVideo
- CVE-2022-32572 Command injection in AVideo
Sources
Also known as GHSA-w5ff-2mjc-4phc.