CVE-2021-41180

Public Exploit
Geolocation preview links can be set to arbitrary links in nextcloud talk

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.

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.23%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory hackerone.com
Affected: nextcloud security-advisories
Published at:
Updated at:

References

Link Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4fxr-mrw2-cq92 third party advisory issue tracking
https://github.com/nextcloud/spreed/pull/6239 third party advisory patch
https://hackerone.com/reports/1337178 patch third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-41180?
CVE-2021-41180 has been scored as a medium severity vulnerability.
How to fix CVE-2021-41180?
To fix CVE-2021-41180, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-41180 being actively exploited in the wild?
It is possible that CVE-2021-41180 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-41180?
CVE-2021-41180 affects nextcloud security-advisories.
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