CVE-2025-53910

CWE-862 — Missing Authorization5 documents4 sources

Severity

4.0MEDIUM

EPSS

0.0%

top 89.61%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Mattermost Mattermost Confluence Plugin Github.com Mattermost/mattermost-plugin-confluence Mattermost Confluence

Timeline

PublishedAug 11

Latest updateAug 18

Description

Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create a channel subscription without proper access to the channel via API call to the edit channel subscription endpoint.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:NExploitability: 2.2 | Impact: 1.4

Affected Packages3 packages

▶CVEListV5mattermost/mattermost_confluence_plugin< 1.5.0

▶Gogithub.com/mattermost/mattermost-plugin-confluence< 1.5.0

▶NVDmattermost/confluence< 1.5.0

🔴Vulnerability Details

OSV

Mattermost Confluence Plugin has Missing Authorization vulnerability in github.com/mattermost/mattermost-plugin-confluence↗2025-08-18

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GHSA

Mattermost Confluence Plugin has Missing Authorization vulnerability↗2025-08-11

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CVEList

Unauthorized Channel Subscription Edit in Mattermost Confluence Plugin↗2025-08-11

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OSV

Mattermost Confluence Plugin has Missing Authorization vulnerability↗2025-08-11

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