CVE-2026-1628

MediumCVSS 4.6/10Last modified Jun 17, 2026

Description

Mattermost Desktop App versions <=5.13.3 fail to attach listeners restricting navigation to external sites within the Mattermost app which allows a malicious server to expose preload script functionality to untrusted servers via having a user open an external link in their Mattermost server. Mattermost Advisory ID: MMSA-2026-00596

Metrics

CVSS 3.1 4.6/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-829

Affected software

No affected versions have been published.

Timeline

Published: Mar 2, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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