AUGUST 4, 2026
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Case File

CVE-2021-42564

MEDIUM · CVSS 5.4 EPSS 0.66%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-11-30 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.4. It may be remotely exploitable.

CVE
CVE-2021-42564
Severity
MEDIUM
CVSS
5.4
EPSS
0.66%

Original NVD Description

An open redirect through HTML injection in confidential messages in Cryptshare before 5.1.0 allows remote attackers (with permission to provide confidential messages via Cryptshare) to redirect targeted victims to any URL via the '<meta http-equiv="refresh"' substring in the editor parameter.

Related CVEs

Other vulnerabilities affecting the same vendor(s)