ShowDoc RCE Flaw CVE-2025-0520 Actively Exploited on Unpatched Servers

A critical security vulnerability impacting ShowDoc, a document management and collaboration service popular in China, has come under active exploitation in the wild.
The vulnerability in question is CVE-2025-0520 (aka CNVD-2020-26585), which carries a CVSS score of 9.4 out of 10.0.
It relates to a case of unrestricted file upload that stems from improper validation of

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id: 621
uid: nPcTh
insdate: 2026-04-14 07:10:08
title: ShowDoc RCE Flaw CVE-2025-0520 Actively Exploited on Unpatched Servers
additional: A critical security vulnerability impacting ShowDoc, a document management and collaboration service popular in China, has come under active exploitation in the wild.
The vulnerability in question is CVE-2025-0520 (aka CNVD-2020-26585), which carries a CVSS score of 9.4 out of 10.0.
It relates to a case of unrestricted file upload that stems from improper validation of
category: Cybersecurity
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guid: https://thehackernews.com/2026/04/showdoc-rce-flaw-cve-2025-0520-actively.html
source_url: https://thehackernews.com/2026/04/showdoc-rce-flaw-cve-2025-0520-actively.html
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