RCE in Wwbn Avideo
CVE-2026-33319
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (34.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Wwbn Avideo — versions < 26.0
Weakness classification (CWE)
References
- github.com/WWBN/AVideo/security/advisories/GHSA-w5ff-2mjc-4phc (Exploit, Vendor Advisory)
- github.com/WWBN/AVideo/commit/67d932eb05e1bc9b36796f73ff4f9fb47590598b (Patch)
Frequently asked questions
- What is CVE-2026-33319?
- CVE-2026-33319 is a medium-severity vulnerability in Wwbn Avideo, classified under OS Command Injection. CVSS score: 5.9/10. Published 2026-03-22.
- How severe is CVE-2026-33319?
- Medium severity. CVSS v3 base score is 5.9 out of 10.