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Vulnerability record · CVE-2026-63304 · published 16 July 2026

CVE-2026-63304: OS command injection vulnerability

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.

9.2 CVSS 4.0 Critical EPSS 2.5% · top 16.2% CWE-78 · OS command injection Deferred
9.2CVSS 4.0 base score
2.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
20 Jul 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/WWBN/AVideo/security/advisories/GHSA-j44m-77cc-p3cc
https://www.vulncheck.com/advisories/avideo-through-os-command-injection-via-listffmpegprocesses
https://github.com/WWBN/AVideo/security/advisories/GHSA-j44m-77cc-p3cc

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Source: NIST National Vulnerability Database (record CVE-2026-63304), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.