We have identified and fixed a cross-site scripting (XSS) vulnerability which may affect Confluence instances in a public environment. The XSS vulnerability is exposed in the document import function of the Confluence Office Connector.
- An attacker might take advantage of the vulnerability to steal other users' session cookies or other credentials, by sending the credentials back to such an attacker's own web server.
You can read more about XSS attacks at cgisecurity, CERT and other places on the web:
Please refer to the security advisory for details of the vulnerability, risk assessment and mitigation strategies: