Nextcloud Text is a collaborative document editing application that uses Markdown. A cross-site scripting vulnerability is present in versions prior to 19.0.13, 20.0.11, and 21.0.3. The Nextcloud Text application shipped with Nextcloud server used a `text/html` Content-Type when serving files to users. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. As a workaround, use a browser that has support for Content-Security-Policy.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2021-07-12T21:05:12

Updated: 2024-08-03T23:33:55.559Z

Reserved: 2021-05-12T00:00:00

Link: CVE-2021-32733

cve-icon Vulnrichment

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cve-icon NVD

Status : Analyzed

Published: 2021-07-12T21:15:07.913

Modified: 2021-07-14T15:27:31.673

Link: CVE-2021-32733

cve-icon Redhat

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