CVE-2021-41233

5.3 mediumEPSS 0.8%

Nextcloud text is a collaborative document editing using Markdown built for the nextcloud server. Due to an issue with the Nextcloud Text application, which is by default shipped with Nextcloud Server, an attacker is able to access the folder names of "File Drop". For successful exploitation an attacker requires knowledge of the sharing link. It is recommended that users upgrade their Nextcloud Server to 20.0.14, 21.0.6 or 22.2.1. Users unable to upgrade should disable the Nextcloud Text application in the application settings.

Severity

CVSS 3.1

5.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)
CWEs: CWE-863, CWE-862
Published: 2022-03-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

nextcloud:nextcloud_server

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-26c8-35cm-xq9m
https://github.com/nextcloud/text/pull/1884
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-26c8-35cm-xq9m
https://github.com/nextcloud/text/pull/1884

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