CVE-2024-36257 — Lack of permission check when updating the profile picture of a remote user (shared channels enabled)
Mattermost versions 9.5.x <= 9.5.5 and 9.8.0, when using shared channels with multiple remote servers connected, fail to check that the remote server A requesting the server B t…
Published: 2024-07-03 · CVSS: 2.7 · CVSS 3.1
Mattermost versions 9.5.x <= 9.5.5 and 9.8.0, when using shared channels with multiple remote servers connected, fail to check that the remote server A requesting the server B to update the profile picture of a user is the remote that actually has the user as a local one . This allows a malicious remote A to change the profile images of users that belong to another remote server C that is connected to the server A.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7