CVE-2025-53857CWE-862

Lack of Authorization on Get Channel Subscriptions for Autocomplete in Mattermost Confluence Plugin

Low · published August 11, 2025

CVSS v3.1
3.7
EPSS
0%
Percentile
10.4
In the wild
Unconfirmed
What it is

Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to get channel subscription details without proper access to the channel via API call to the GET autocomplete/GetChannelSubscriptions endpoint.

The record
Technical detail
CVSS v3.1
3.7 · LOW
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00208 · 10.4th percentile
Weakness
CWE-862 · Missing Authorization
Published
2025-08-11T18:57Z
EPSS history
Timeline
  • 11 AUG 18:57Z
    Lack of Authorization on Get Channel Subscriptions for Autocomplete in Mattermost Confluence Plugin
    cvelistv5