CVE-2023-34088

published 2023-05-31

CVE-2023-34088: Collabora Online is a collaborative online office suite. A stored cross-site scripting (XSS) vulnerability was found in Collabora Online prior to versions…

Priority P4 25 medium 5.4 CVSS 3.1

AV N AC L PR L UI R S C C L I L A N

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

6 ranges

Vendor	Product	Version range	Fixed in
collaboraoffice	collabora_online	< 6.4.27	6.4.27
collaboraoffice	collabora_online	>= 21.0 < 21.11.9.1	21.11.9.1
collaboraoffice	collabora_online	>= 22.0 < 22.05.13	22.05.13
collaboraonline	online	—	—
collaboraonline	online	—	—
collaboraonline	online	—	—

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-79