CVE-2025-0520criticalobserved exploitationCWE-434

CVE-2025-0520: critical vulnerability in ShowDoc

ShowDoc < 2.8.7 Unauthenticated File Upload Remote Code Execution

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65Vexday Risk Score

Patch now. It exploitation observed by VulnCheck and has a working public exploit.

ssvc Actcvss 9.4epss 2.4%
from disclosure to weapon
Published on NVDApr 29
VulnCheck+346d
An unrestricted file upload vulnerability in ShowDoc caused by improper validation of file extension allows execution of arbitrary PHP, leading to remote code execution.This issue affects ShowDoc: before 2.8.7.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L
Affected products
ShowDoc · ShowDoc
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