Medium severity · published Mar 8, 2022
CVE-2021-41180
Nextcloud talk is a self hosting messaging service
6.1
CVSS
1%
EPSS
No
On KEV
Description
Nextcloud talk is a self hosting messaging service. In versions prior 12.1.2 an attacker is able to control the link of a geolocation preview in the Nextcloud Talk application due to a lack of validation on the link. This could result in an open-redirect, but required user interaction. This only affected users of the Android Talk client. It is recommended that the Nextcloud Talk App is upgraded to 12.1.2. There are no known workarounds.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TA
Talk · Nextcloud
before 12.1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41180
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41180
Issue Tracking
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4fxr-mrw2-cq92
Patch
https://github.com/nextcloud/spreed/pull/6239
Exploit
https://hackerone.com/reports/1337178
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