PT-2026-43460 · Wwbn · Avideo

Offset · Published 2026-05-15 · Updated 2026-05-29 · CVE-2026-45578

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions WWBN AVideo versions 29.0 and earlier

Description A shell-metacharacter injection exists in the YPTSocket notification branch within the plugin/Live/on publish.php file. The application constructs a command line for the execAsync() function using string concatenation and literal single quotes instead of using the escapeshellarg() function. This allows an attacker to close the quoted token by inserting a single quote into the $users id, $m3u8, or $obj->liveTransmitionHistory id variables, enabling the execution of arbitrary OS commands with the privileges of the web-server runtime user.

The issue is reachable via a direct HTTP POST request to the endpoint "/plugin/Live/on publish.php".

Recommendations Update to a version where escapeshellarg() is applied to all variables interpolated into the command string in plugin/Live/on publish.php. As a temporary mitigation, restrict access to the "/plugin/Live/on publish.php" endpoint to only allow requests from 127.0.0.1 and configured RTMP server IPs via .htaccess or nginx location rules.

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2026-45578

GHSA-XW67-CG5F-4M2R

Affected Products

Avideo

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-45578 · Security Note
• https://osv.dev/vulnerability/GHSA-xw67-cg5f-4m2r · Vendor Advisory
• https://github.com/WWBN/AVideo/security/advisories/GHSA-xw67-cg5f-4m2r · Note
• https://github.com/WWBN/AVideo · Note
• https://t.me/CVEtracker/55243 · Telegram Post