CVE-2025-46702 | Mattermost Playbooks allows privilege escalation through improper access control in playbook run participant management

Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly enforce channel member management permissions when adding participants to playbook runs. This allows authenticated users with member-level permissions to bypass system admin restrictions and add or remove users to/from private channels via the playbook run participants feature, even when the 'Manage Members' permission has been explicitly removed. This can lead to unauthorized access to sensitive channel content and allow guest users to gain channel management privileges.

Published: 2025-06-30 Last update: 2025-07-08 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-46702 is rated Low Risk (37.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.21%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-46702

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-26 0.05% 0.21% +0.16%
2 2026-03-05 0.02% 0.05% +0.03%
3 2025-07-01 — 0.02% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-46702

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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:L)
A normal user session is enough; they don’t have to be admin.
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:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.5 [email protected]

Weakness enumeration for CVE-2025-46702

GitHub Security Advisory for CVE-2025-46702

GHSA-v8fr-vxmw-6mf6 · Severity: medium · Ecosystem: go — Mattermost Incorrect Authorization vulnerability

Affected software / configurations for CVE-2025-46702

Vendor Product Version Raw CPE
mattermost mattermost_server >= 9.11.0, < 9.11.16 cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost_server >= 10.5.0, < 10.5.6 cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost_server >= 10.6.0, < 10.6.6 cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost_server >= 10.7.0, < 10.7.3 cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost_server 10.8.0 cpe:2.3:a:mattermost:mattermost_server:10.8.0:-:*:*:*:*:*:*
mattermost mattermost_server 10.8.0 cpe:2.3:a:mattermost:mattermost_server:10.8.0:rc1:*:*:*:*:*:*
mattermost mattermost_server 10.8.0 cpe:2.3:a:mattermost:mattermost_server:10.8.0:rc2:*:*:*:*:*:*
mattermost mattermost_server 10.8.0 cpe:2.3:a:mattermost:mattermost_server:10.8.0:rc3:*:*:*:*:*:*

References for CVE-2025-46702

URL Tags
https://mattermost.com/security-updates Vendor Advisory
cvelogic Threat Intelligence