CVE-2021-42564

Published: Nov 30, 2021Modified: Jun 17, 2026

5.4

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.3 / Impact: 2.7

Source: 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.

Affected (1)

Products: Cryptshare: Cryptshare Server

1 product

Cryptshare Server

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Cryptshare Cryptshare Server	Before 5.1.0

Related CWEs

URL Redirection to Untrusted Site ('Open Redirect')

A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks.

References (2)

https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-057.txt

Source: cve@mitre.org

ExploitThird Party Advisory

https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-057.txt

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

Timeline

No history available yet.