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Case File

CVE-2021-3906

MEDIUM · CVSS 6.5 EPSS 0.65% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-27 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-3906
Severity
MEDIUM
CVSS
6.5
EPSS
0.65%

Original NVD Description

bookstack is vulnerable to Unrestricted Upload of File with Dangerous Type