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.
References (3)
Core 3
Core References
Issue Tracking, Third Party Advisory x_refsource_confirm
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4fxr-mrw2-cq92
Patch, Third Party Advisory x_refsource_misc
https://github.com/nextcloud/spreed/pull/6239
Exploit, Patch, Third Party Advisory x_refsource_misc
https://hackerone.com/reports/1337178
Scores
CVSS v3
4.7
EPSS
0.0019
EPSS Percentile
40.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-601
Status
published
Products (1)
nextcloud/talk
< 12.1.2
Published
Mar 08, 2022
Tracked Since
Feb 18, 2026