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Case File

CVE-2020-21526

CRITICAL · CVSS 9.8 EPSS 1.89% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-09-30 · 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-2020-21526
Severity
CRITICAL
CVSS
9.8
EPSS
1.89%

Original NVD Description

An Arbitrary file writing vulnerability in halo v1.1.3. In an interface to write files in the background, a directory traversal check is performed on the input path parameter, but the startsWith function can be used to bypass it.