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Mallory
Critical

Unauthenticated command injection in AVideo getImage.php

IdentifiersCVE-2026-29058CWE-78· Improper Neutralization of Special…

CVE-2026-29058 is a critical unauthenticated OS command injection vulnerability in AVideo / AVideo-Encoder affecting version 6.0 prior to the 7.0 patch. The flaw is in objects/getImage.php, where the application accepts a user-controlled base64Url GET parameter, Base64-decodes it, and interpolates the decoded value into a double-quoted ffmpeg shell command without proper shell escaping. Although the application performs basic URL validation, that validation does not neutralize shell metacharacters or command-substitution syntax, allowing an attacker to inject arbitrary commands. The issue is described as zero-click and network-reachable, requiring no authentication or user interaction.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows remote unauthenticated attackers to execute arbitrary operating system commands in the context of the vulnerable server process. This can lead to full server compromise, exfiltration of sensitive data such as configuration secrets, internal keys, and credentials, disruption of service, and potential hijacking or interference with live video streaming operations.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, restrict access to objects/getImage.php at the web server, reverse proxy, or network layer, ideally with strict IP allowlisting. Deploy WAF or reverse-proxy detection rules to inspect for suspicious Base64-encoded payloads and shell metacharacter patterns targeting the base64Url parameter. If operationally feasible, disable the affected image retrieval component until the system can be upgraded.

Remediation

Patch, then assume compromise.

Upgrade AVideo / AVideo-Encoder to version 7.0 or later, where the issue is patched. The fix reportedly applies strict shell argument escaping, such as escapeshellarg(), to prevent untrusted input from being interpreted by the shell. Administrators should also review exposed instances for signs of compromise and rotate any credentials or secrets that may have been accessible from the affected host.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
WwbnAvideo-Encoderapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity13

Community discussion across Reddit, Mastodon, and other social sources.