RCE in Wwbn Avideo
CVE-2026-41304
WWBN AVideo is an open source video platform. In versions 29.0 and below, the `cloneServer.json.php` endpoint in the CloneSite plugin constructs shell commands using user-controlled input (`url` parameter) without proper sanitization. The input is directly concatenated into a `wget` command executed via `exec()`, allowing command injection. An attacker can inject arbitrary shell commands by breaking out of the intended URL context using shell metacharacters (e.g., `;`). This leads to Remote Code Execution (RCE) on the server. Commit 473c609fc2defdea8b937b00e86ce88eba1f15bb contains a fix.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.027 (85.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.027 · change: +0.005
Affected products
- Wwbn Avideo — versions <= 29.0
Weakness classification (CWE)
References
- github.com/WWBN/AVideo/security/advisories/GHSA-xr6f-h4x7-r6qp (Exploit, Mitigation, Vendor Advisory)
- github.com/WWBN/AVideo/commit/473c609fc2defdea8b937b00e86ce88eba1f15bb (Patch)
Frequently asked questions
- What is CVE-2026-41304?
- CVE-2026-41304 is a critical-severity vulnerability in Wwbn Avideo, classified under Command Injection. CVSS score: 9.8/10. Published 2026-04-22.
- How severe is CVE-2026-41304?
- Critical severity. CVSS v3 base score is 9.8 out of 10.