5.4

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

Analyzed
AliasesGHSA-v8fr-vxmw-6mf6GO-2025-3796
Published 30-06-2025Last modified 30-06-2025

Vulnerability summary

CVE-2025-46702 is a medium (CVSS 5.4) Incorrect Authorization vulnerability in mattermost. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.4, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2025:15405-1

Timeline

  1. 30-06-2025
    PublishedVulnerability first disclosed.
  2. 30-06-2025
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.22% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Github.com/mattermost/mattermost-server2 products
  • v5All versions (No fix recorded)
  • v6All versions (No fix recorded)
Mattermost2 products
  • mattermost≥ 10.5.0, ≤ 10.5.5 | ≥ 9.11.0, ≤ 9.11.15 | 10.8.0 | ≥ 10.7.0, ≤ 10.7.2 | ≥ 10.6.0, ≤ 10.6.5
  • mattermost_serverEOL≥ 9.11.0, < 9.11.16 | ≥ 10.5.0, < 10.5.6 | ≥ 10.6.0, < 10.6.6 | ≥ 10.7.0, < 10.7.3 | 10.8.0 | 10.8.0:rc1 | 10.8.0:rc2 | 10.8.0:rc3
Github.com/mattermost1 product
  • mattermost-server< 0.0.0-20250513065225-4ae5d647fb88 | ≥ 10.8.0+incompatible, < 10.8.1+incompatible
Github.com/mattermost/mattermost/server1 product
  • v8≥ 9.11.0, < 9.11.16 | ≥ 10.5.0, < 10.5.6 | ≥ 10.6.0, < 10.6.6 | ≥ 10.7.0, < 10.7.3 | ≥ 10.8.0, < 10.8.1 | < 8.0.0-20250513065225-4ae5d647fb88

4 vendors · 6 products

References

6 links