CVE-2021-32745

High

Description

Collabora Online is a collaborative online office suite. A reflected XSS vulnerability was found in Collabora Online prior to version 6.4.9-5. 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. The issue is patched in Collabora Online 6.4.9-5. Collabora Online 4.2 is not affected.

SeverityHigh
CVSS7.3
Exploit probability—
ProductCollabora Online
PublishedJul 21, 2021
First seenJul 21, 2021

How to fix

Update
  • collabora online6.4.9-5 or later

Affected products

ProductAffected versionsFixed in
collabora online4.2 < v < 6.4.9-56.4.9-5

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