VulnerabilityModified
CVE-2021-42564
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…
MEDIUM 5.4EPSS 0.66%
Does this matter?
Lower severity and a low EPSS score (0.66%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.66% probability · 50th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-601
- Affected
- cryptshare/cryptshare server
- Source
- cve@mitre.org
References
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-057.txtExploit, Third Party Advisory
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-057.txtExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.