CVE-2025-59480: mattermost mobile before 2.33.0 (exclusive); +1 more affected products

Affected technology

mattermost mobile · before 2.33.0 (exclusive)
mattermost

Mattermost · 0 through 2.32.0
Mattermost

Description’s affected range: versions <=2.32.0 fail to verify that SSO redirect tokens originate from the trusted server, which

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · User interaction required

Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · User interaction required

What an attacker can do

A malicious Mattermost instance or on-path attacker can obtain user session credentials via crafted token-in-URL responses. Vendor/CNA’s CVSS 3.1 assessment (base score 6.1/10) rates confidentiality impact as high; integrity and availability impact as none. NVD’s CVSS 3.1 assessment (base score 6.5/10) rates confidentiality impact as high; integrity and availability impact as none.