Vulnerabilities > Atlassian > Jira Service Management > 5.5.0
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2023-02-01 | CVE-2023-22501 | Improper Authentication vulnerability in Atlassian Jira Service Management An authentication vulnerability was discovered in Jira Service Management Server and Data Center which allows an attacker to impersonate another user and gain access to a Jira Service Management instance under certain circumstances_._ With write access to a User Directory and outgoing email enabled on a Jira Service Management instance, an attacker could gain access to signup tokens sent to users with accounts that have never been logged into. | 9.1 |