CVE-2023-54402: Idocview

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

iDocView contains a server-side request forgery vulnerability in its /doc/upload endpoint that allows remote unauthenticated attackers to fetch arbitrary URLs by supplying a hardcoded default token value (testtoken) to bypass authentication. Attackers can exploit the unrestricted URL scheme handling, including file:// URIs, to read arbitrary local files such as operating-system and application configuration files, and to reach internal network hosts and services not otherwise accessible. Exploitation evidence was first observed by the Shadowserver Foundation on 2024-03-26.

Affected products

• Idocview Idocview: any version

Published 2026-09-30. Last modified 2026-10-05.