CVE-2021-42564
low-risk
Published 2021-11-30
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.
Do I need to act?
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0.14% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.4/10
Medium
NETWORK
/ LOW complexity
Affected Products (1)
Cryptshare Server
Affected Vendors
27
/ 100
low-risk
Severity
21/34 · High
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal