As a Confluence administrator it was potentially possible to upload a malicious XML file.
|Advisory Release Date
Linchpin Intranet Suite
Linchpin Intranet Suite 5.1.3 and all prior versions
Linchpin Essentials 2.1.3 and all prior versions
Linchpin Intranet Suite 5.1.4
Linchpin Essentials 2.1.4
The issue was discovered by Muhamad Visat via the Atlassian bug bounty program. The researcher could identify that a Confluence administrator could upload a malicious XML file to read sensitive data.
Affected are the apps Linchpin Intranet Suite up to and including version 5.1.3 and Linchpin Essentials up to and including version 2.1.3.
The vulnerability is rated as 6.5 according to CVSS. The score is calculated as CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.
For Linchpin Suite customers: Update to Linchpin Suite 5.1.4 or later.
For Linchpin Essentials customers: Update to Linchpin Essentials 2.1.4 or later.
Should you be unable to update the Linchpin Intranet Suite to one of the listed versions, please reach out to our support team at https://seibert.biz/help.