cvedb.io
CVE-2023-34088
HIGH · CVSS 8.7
EPSS exploitation probability: 0%
Published 2023-05-31T19:15:27.290 · Last modified 2026-06-17T06:02:52.063

Summary

Collabora Online is a collaborative online office suite. A stored cross-site scripting (XSS) vulnerability was found in Collabora Online prior to versions 22.05.13, 21.11.9.1, and 6.4.27. An attacker could create a document with an XSS payload as a document name. Later, if an administrator opened the admin console and navigated to the history page, the document name was injected as unescaped HTML and executed as a script inside the context of the admin console. The administrator JSON web token (JWT) used for the websocket connection could be leaked through this flaw. Users should upgrade to Collabora Online 22.05.13 or higher; Collabora Online 21.11.9.1 or higher; Collabora Online 6.4.27 or higher to receive a patch.

Affected products

collaboraoffice — collabora_online

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.