Reflected Cross-Site-Scripting vulnerability in Collabora Online
CVE-2021-43817

8.2HIGH

Key Information:

Vendor
Collaboraonline
Status
Online
Vendor
CVE Published:
13 December 2021

Summary

Collabora Online is a collaborative online office suite based on LibreOffice technology. In affected versions a reflected XSS vulnerability was found in Collabora Online. An attacker could inject unescaped HTML into a variable as they created the Collabora Online iframe, and execute scripts inside the context of the Collabora Online iframe. This would give access to a small set of user settings stored in the browser, as well as the session's authentication token which was also passed in at iframe creation time. Users should upgrade to Collabora Online 6.4.16 or higher or Collabora Online 4.2.20 or higher. Collabora Online Development Edition 21.11 is not affected.

Affected Version(s)

online >= 6.0.0, < 6.4.16 < 6.0.0, 6.4.16

online < 4.2.20 < 4.2.20

References

https://github.com/CollaboraOnline/online/security/adviso...
x_refsource_CONFIRM

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.