Zitat von MITs Forum am 25. Mai 2023, 0:00 Uhr

Affected versions of Atlassian Confluence Server allow remote attackers who have read permissions to a page, but not write permissions, to upload attachments via a Broken Access Control vulnerability in the attachments feature. The affected versions are before version 7.19.9. This vulnerability was discovered by Rojan Rijal of the Tinder Security Engineering Team.

References
https://jira.atlassian.com/browse/CONFSERVER-83218