Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting the updater from a malicious location.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Link | Tags |
---|---|
https://hackerone.com/reports/515484 | permissions required |
https://nextcloud.com/security/advisory/?id=NC-SA-2020-007 | vendor advisory |