CVE-2025-59480
Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-11-13

Last updated on: 2025-11-13

Assigner: Mattermost, Inc.

Description
Mattermost Mobile Apps versions <=2.32.0 fail to verify that SSO redirect tokens originate from the trusted server, which allows a malicious Mattermost instance or on-path attacker to obtain user session credentials via crafted token-in-URL responses

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Meta Information

Published
2025-11-13
Last Modified
2025-11-13
Generated
2026-07-06
AI Q&A
2025-11-13
EPSS Evaluated
2026-07-05
NVD
CVE-2025-59480
EUVD
EUVD-2025-175341

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mattermost mobile_apps 2.32.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-352 The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

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Executive Summary

This vulnerability occurs in Mattermost Mobile Apps versions up to 2.32.0, where the app fails to verify that Single Sign-On (SSO) redirect tokens come from a trusted server. This flaw allows a malicious Mattermost instance or an attacker positioned on the network path to capture user session credentials by sending specially crafted tokens in URL responses.

Impact Analysis

The vulnerability can lead to unauthorized access to user session credentials, potentially allowing attackers to hijack user sessions. This compromises user account security and may lead to unauthorized actions within the Mattermost environment.

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