IDOR in Jira plugin subscription edit endpoint_CVE-2026-6062

6.4 / 10

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L

Description

Mattermost versions 11.7.x <= 11.7.0, 11.6.x <= 11.6.2, 11.5.x <= 11.5.5, 10.11.x <= 10.11.17 Fail to validate channel ownership of an existing subscription before applying edits which allows an authenticated attacker to hijack subscriptions from channels they have no access to via a crafted PUT request to the subscription edit endpoint.. Mattermost Advisory ID: MMSA-2026-00650

Basic Information

ID CVE-2026-6062

Source Mattermost

Published Jun 22, 2026 at 13:40

Affected Product

Vendor Mattermost

Product Mattermost

Version 11.7.0

Affected Versions Mattermost Mattermost 11.7.0
Mattermost Mattermost 11.6.0
Mattermost Mattermost 11.5.0
Mattermost Mattermost 10.11.0

CWE Classification

CWE-639

References

mattermost.com /security-updates

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    "published": "2026-06-22T13:40:07.776Z",
    "modified": "2026-06-22T13:40:07.776Z",
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    "title": "IDOR in Jira plugin subscription edit endpoint",
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