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Vulnerability record · CVE-2026-33482 · published 23 March 2026

CVE-2026-33482: Wwbn avideo os command injection vulnerability

Wwbn · Avideo

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `sanitizeFFmpegCommand()` function in `plugin/API/standAlone/functions.php` is designed to prevent OS command injection in ffmpeg commands by stripping dangerous shell metacharacters (`&&`, `;`, `|`, `` ` ``, `<`, `>`). However, it fails to strip `$()` (bash command substitution syntax). Since the sanitized command is executed inside a double-quoted `sh -c` context in `execAsync()`, an attacker who can craft a valid encrypted payload can achieve arbitrary command execution on the standalone encoder server. Commit 25c8ab90269e3a01fb4cf205b40a373487f022e1 contains a patch.

8.1 CVSS 3.1 High EPSS 4.7% · top 8.6% CWE-78 · OS command injection
8.1CVSS 3.1 base score
4.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `sanitizeFFmpegCommand()` function in `plugin/API/standAlone/functions.php` is designed to prevent OS command injection in ffmpeg commands by stripping dangerous shell metacharacters (`&&`, `;`, `|`, `` ` ``, `<`, `>`). However, it fails to strip `$()` (bash command substitution syntax). Since the sanitized command is executed inside a double-quoted `sh -c` context in `execAsync()`, an attacker who can craft a valid encrypted payload can achieve arbitrary command execution on the standalone encoder server. Commit 25c8ab90269e3a01fb4cf205b40a373487f022e1 contains a patch.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/WWBN/AVideo/commit/25c8ab90269e3a01fb4cf205b40a373487f022e1 Patch
https://github.com/WWBN/AVideo/security/advisories/GHSA-pmj8-r2j7-xg6c ExploitMitigationVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2026-40911Wwbn avideo code injection vulnerabilityWWBN AVideo is an open source video platform. In versions 29.0 and prior, the YPTSocket plugin's WebSocket server relays attacker-supplied JSON messa…EPSS 0.86%10.0CVE-2026-33478Wwbn avideo os command injection vulnerabilityWWBN AVideo is an open source video platform. In versions up to and including 26.0, multiple vulnerabilities in AVideo's CloneSite plugin chain toget…EPSS 11%9.9CVE-2022-30547AVideo unzipDirectory path traversal leads to command executionWWBN AVideo 11.6 and dev master commit 3f7c0364 contain a directory traversal flaw in the unzipDirectory functionality. A crafted HTTP request can es…EPSS 64%analysed9.8CVE-2026-33352Wwbn avideo sql injection vulnerabilityWWBN AVideo is an open source video platform. Prior to version 26.0, an unauthenticated SQL injection vulnerability exists in `objects/category.php` …EPSS 0.53%9.8CVE-2026-28501Wwbn avideo sql injection vulnerabilityWWBN AVideo is an open source video platform. Prior to version 24.0, an unauthenticated SQL Injection vulnerability exists in AVideo within the objec…EPSS 1.4%9.8CVE-2026-29093Wwbn avideo improper authentication vulnerabilityWWBN AVideo is an open source video platform. Prior to version 24.0, the official docker-compose.yml publishes the memcached service on host port 112…EPSS 0.62%9.8CVE-2025-48732Wwbn avideo vulnerabilityAn incomplete blacklist exists in the .htaccess sample of WWBN AVideo 14.4 and dev master commit 8a8954ff. A specially crafted HTTP request can lead …EPSS 1.1%9.8CVE-2024-31819Wwbn avideo code injection vulnerabilityAn issue in WWBN AVideo v.12.4 through v.14.2 allows a remote attacker to execute arbitrary code via the systemRootPath parameter of the submitIndex.…EPSS 16%

Source: NIST National Vulnerability Database (record CVE-2026-33482), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.