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CVE-2026-33482— AVideo has an OS Command Injection via $() Shell Substitution Bypass in sanitizeFFmpegCommand()

CVSS 8.1 · High EPSS 0.10% · P28
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I. Basic Information for CVE-2026-33482

Vulnerability Information
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Vulnerability Title
AVideo has an OS Command Injection via $() Shell Substitution Bypass in sanitizeFFmpegCommand()
Source: NVD (National Vulnerability Database)
Vulnerability Description
WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `sanitizeFFmpegCommand()` function in `plugin/API/standAlone/functions.php` is designed to prevent OS command injection in ffmpeg commands by stripping dangerous shell metacharacters (`&&`, `;`, `|`, `` ` ``, `<`, `>`). However, it fails to strip `$()` (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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
WWBN AVideo 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WWBN AVideo是WWBN团队的一个由PHP编写的视频平台建站系统。 WWBN AVideo 26.0及之前版本存在操作系统命令注入漏洞，该漏洞源于sanitizeFFmpegCommand函数未能过滤bash命令替换语法，可能导致OS命令注入攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
WWBNAVideo <= 26.0 -

II. Public POCs for CVE-2026-33482

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III. Intelligence Information for CVE-2026-33482

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Same Patch Batch · WWBN · 2026-03-23 · 34 CVEs total

CVE-2026-3347810.0 CRITICALAVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure,
CVE-2026-333529.8 CRITICALAVideo has an Unauthenticated SQL Injection via `doNotShowCats` Parameter (Backslash Escap
CVE-2026-337169.4 CRITICALAVideo Allows Unauthenticated Live Stream Control via Token Verification URL Override in c
CVE-2026-335029.3 CRITICALAVideo has Unauthenticated SSRF via plugin/Live/test.php
CVE-2026-333519.1 CRITICALAVideo has Unauthenticated SSRF via `webSiteRootURL` Parameter in saveDVR.json.php, Chaini
CVE-2026-335078.8 HIGHAVideo Affected by CSRF on Plugin Import Endpoint Enables Unauthenticated Remote Code Exec
CVE-2026-337178.8 HIGHAVideo Vulnerable to Remote Code Execution via Persistent PHP Temp File in Encoder downloa
CVE-2026-336478.8 HIGHAVideo Vulnerable to Remote Code Execution via MIME/Extension Mismatch in ImageGallery Fil
CVE-2026-336488.8 HIGHAVideo Vulnerable to OS Command Injection via Unsanitized `users_id` and `liveTransmitionH
CVE-2026-334798.8 HIGHAVideo has PHP Code Injection via eval() in Gallery saveSort.json.php Exploitable Through
CVE-2026-337198.6 HIGHAVideo Vulnerable to Unauthenticated CDN Configuration Takeover via Empty Default Key Bypa
CVE-2026-335138.6 HIGHAVideo has an Unauthenticated Local File Inclusion in API locale (RCE possible with writab
CVE-2026-334808.6 HIGHAVideo has a SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses in Unauthenticated Live
CVE-2026-336518.1 HIGHAVideo has a Blind SQL Injection in Live Schedule Reminder via Unsanitized live_schedule_i
CVE-2026-336498.1 HIGHAVideo's GET-Based CSRF in setPermission.json.php Enables Privilege Escalation via Arbitra
CVE-2026-333547.6 HIGHAVideo has an authenticated arbitrary local file read via `chunkFile` path injection in `a
CVE-2026-336507.6 HIGHAVideo's Video Moderator Privilege Escalation via Ownership Transfer Enables Arbitrary Vid
CVE-2026-334857.5 HIGHAVideo has an Unauthenticated Blind SQL Injection in RTMP on_publish Callback via Stream N
CVE-2026-334837.5 HIGHAVideo Affected by Unauthenticated Disk Space Exhaustion via Unlimited Temp File Creation
CVE-2026-335127.5 HIGHAVideo has an unauthenticated decrypt oracle leaking any ciphertext

Showing top 20 of 34 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-78

V. Comments for CVE-2026-33482

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