CVE-2021-39224

Low

Description

Nextcloud is an open-source, self-hosted productivity platform. The Nextcloud OfficeOnline application prior to version 1.1.1 returned verbatim exception messages to the user. This could result in a full path disclosure on shared files. (e.g. an attacker could see that the file `shared.txt` is located within `/files/$username/Myfolder/Mysubfolder/shared.txt`). It is recommended that the OfficeOnline application is upgraded to 1.1.1. As a workaround, one may disable the OfficeOnline application in the app settings.

SeverityLow
CVSS3.5
Exploit probability—
ProductNextcloud Officeonline
PublishedOct 25, 2021
First seenOct 25, 2021

How to fix

Update
  • nextcloud officeonline1.1.1 or later

Affected products

ProductAffected versionsFixed in
nextcloud officeonlinev < 1.1.11.1.1

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