CVE-2021-32654: high-severity vulnerability in nextcloud security-advisories
Attacker can obtain write access to any federated share/public link
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 1.8%
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.11, 20.0.10, and 21.0.2, an attacker is able to receive write/read privileges on any Federated File Share. Since public links can be added as federated file share, this can also be exploited on any public link. Users can upgrade to patched versions (19.0.11, 20.0.10 or 21.0.2) or, as a workaround, disable federated file sharing.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
nextcloud · security-advisoriesRelated CVEs — nextcloud security-advisories
In the same product, most dangerous first.
CVE-2022-24838MEDIUMCommand Injection in Appointment Emails for Nextcloud CalendarEPSS 33.0%CVE-2023-26482CRITICALScope of workflow operations is not validated in nextcloud serverEPSS 4.2%CVE-2021-32802CRITICALPreview generation used third-party library not suited for user-generated content in Nextcloud serverEPSS 2.6%CVE-2022-31014MEDIUMSMTP Command Injection in iCalendar Attachments to emails via newlines in Nextcloud ServerEPSS 2.5%CVE-2021-32688HIGHApplication specific tokens can change their own scopeEPSS 2.3%CVE-2021-37628HIGHFile Drop can be bypassed using Richdocuments app in nextcloudEPSS 2.1%