Stored XSS vulnerability in UpdateFieldJson.jspa in JIRA 4.4.3 and GreenHopper before 5.9.8 allows an attacker to inject arbitrary script code.

The Customer Context Filter in Atlassian Jira Service Desk Server and Jira Service Desk Data Center before version 3.9.16, from version 3.10.0 before version 3.16.8, from version 4.0.0 before version 4.1.3, from version 4.2.0 before version 4.2.5, from version 4.3.0 before version 4.3.4, and version 4.4.0 allows remote attackers with portal access to view arbitrary issues in Jira Service Desk projects via a path traversal vulnerability. Note that when the 'Anyone can email the service desk or raise a request in the portal' setting is enabled, an attacker can grant themselves portal access, allowing them to exploit the vulnerability.

The JIRA Workflow Designer Plugin in Atlassian JIRA Server before 6.3.0 improperly uses an XML parser and deserializer, which allows remote attackers to execute arbitrary code, read arbitrary files, or cause a denial of service via a crafted serialized Java object.