---
title: "CVE-2026-29058: WWBN AVideo is vulnerable to unauthenticated OS Command Injection via base64Url in objects/getImage.php"
url: https://erroneo.us/security/cve/CVE-2026-29058/
description: "CVE-2026-29058 (wwbn/avideo (Composer (PHP))): AVideo is a video-sharing Platform software. Prior to version 7.0, an unauthenticated attacker can execute…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-03-06
date_modified: 2026-03-09
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-29058"
kev: false
cvss: 9.8
epss: 0.06773
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-29058: WWBN AVideo is vulnerable to unauthenticated OS Command Injection via base64Url in objects/getImage.php

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 6.8% , percentile 94: FIRST’s model estimates a 6.8% chance of exploitation activity in the next 30 days, higher than 94% of all scored CVEs (elevated). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes wwbn/avideo (Composer (PHP)) < 7.0.0, fixed in 7.0.0 . Check your lockfile, including transitive dependencies.

## What it is

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.

## Affected packages

- Composer (PHP) `wwbn/avideo` < 7.0.0 → fixed: 7.0.0

## Affected products (CVE record)

- WWBN AVideo-Encoder: < 7.0

## Severity

- GitHub_M CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 6.77% probability of exploitation activity in the next 30 days; percentile 94.

## Sources

- [GitHub Advisory GHSA-9j26-99jh-v26q](https://github.com/advisories/GHSA-9j26-99jh-v26q)
- [CVE.org record CVE-2026-29058](https://www.cve.org/CVERecord?id=CVE-2026-29058)
- [NVD entry CVE-2026-29058](https://nvd.nist.gov/vuln/detail/CVE-2026-29058)
- [github.com](https://github.com/WWBN/AVideo-Encoder/security/advisories/GHSA-9j26-99jh-v26q)

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Source page: https://erroneo.us/security/cve/CVE-2026-29058/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt