RCE in Wwbn Avideo
CVE-2026-63304
AVideo through 29.0 contains an OS command injection vulnerability in plugin/API/standAlone/functions.php where the listFFmpegProcesses() function interpolates unsanitized keyword parameters inside single quotes without escaping. Attackers who can craft a valid encrypted codeToExec payload can break out of the single-quoted grep context and execute arbitrary OS commands as the web-server user.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Wwbn Avideo — versions 0
Weakness classification (CWE)
References
- github.com/WWBN/AVideo/security/advisories/GHSA-j44m-77cc-p3cc (vendor-advisory)
- www.vulncheck.com/advisories/avideo-through-os-command-injection-via-listffmpeg… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-63304?
- CVE-2026-63304 is a high-severity vulnerability in Wwbn Avideo, classified under OS Command Injection. CVSS score: 8.1/10. Published 2026-07-16.
- How severe is CVE-2026-63304?
- High severity. CVSS v3 base score is 8.1 out of 10.