Mattermost Fails to Check User Access to `ExperimentalSettings`

CVE-2025-2570 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

Mattermost versions 10.5.x <= 10.5.2, 9.11.x <= 9.11.11 fail to check RestrictSystemAdmin setting if user doesn't have access to ExperimentalSettings which allows a System Manager to access ExperimentSettings when RestrictSystemAdmin is true via System Console.

Basic information

Type
reviewed
Severity
low
Advisory on GitHub
Open advisory ↗
Repository advisory
—
Source code
Browse source ↗
Published (advisory)
2025-05-15 18:31:46 UTC
Updated
2025-05-17 15:04:08 UTC
GitHub reviewed
2025-05-17 15:04:07 UTC
NVD published
2025-05-15

EPSS Score

Score Percentile
0.22% 44.00%

CVSS Scores

Base score Version Severity Vector
2.7 3.1 —
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.

Identifiers

Type Value
GHSA GHSA-fpff-wj6m-grvr ↗
CVE CVE-2025-2570 ↗

CWEs

CWE id Name
CWE-863 Incorrect Authorization

Affected packages (3)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
go github.com/mattermost/mattermost/server/v8 >= 10.5.0, <= 10.5.2 10.5.3 —
go github.com/mattermost/mattermost/server/v8 >= 9.11.0, <= 9.11.11 9.11.12 —
go github.com/mattermost/mattermost/server/v8 < 8.0.0-20250411064244-844447fbd57c 8.0.0-20250411064244-844447fbd57c —

References

cvelogic Threat Intelligence