5.3

CVE-2025-3913: Team Privacy Settings Authorization Bypass in Mattermost Server

Analyzed
AliasesGHSA-4mmr-2w8p-whcrGO-2025-3724
Published 29-05-2025Last modified 29-05-2025

Vulnerability summary

CVE-2025-3913 is a medium (CVSS 5.3) Incorrect Authorization vulnerability in mattermost. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 25.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.33%
0%100%
Low · +0.01 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-2025:15225-1

Timeline

  1. 29-05-2025
    PublishedVulnerability first disclosed.
  2. 29-05-2025
    Last modifiedVulnerability information updated.

Description

Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly validate permissions when changing team privacy settings, allowing team administrators without the 'invite user' permission to access and modify team invite IDs via the /api/v4/teams/:teamId/privacy endpoint.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

26%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.31% 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, no authentication, 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
  • mattermost10.7.0 | ≥ 10.6.0, ≤ 10.6.2 | ≥ 10.5.0, ≤ 10.5.3 | ≥ 9.11.0, ≤ 9.11.12
  • mattermost_server≥ 9.11.0, < 9.11.13 | ≥ 10.5.0, < 10.5.4 | ≥ 10.6.0, < 10.6.3 | ≥ 10.7.0, < 10.7.1
Github.com/mattermost1 product
  • mattermost-server≥ 10.7.0-rc1+incompatible, < 10.7.1+incompatible
Github.com/mattermost/mattermost/server1 product
  • v8≥ 10.7.0-rc1, < 10.7.1 | ≥ 10.6.0-rc1, < 10.6.3 | ≥ 10.5.0-rc1, < 10.5.4 | ≥ 9.0.0-rc1, < 9.11.13 | < 8.0.0-20250412152950-02c76784380a

4 vendors · 6 products

References

5 links