6.8

CVE-2025-36530: mattermost Path Traversal

CVSS: 6.8v3.1MediumAnalyzed
AliasesGHSA-gq3r-5833-5532GO-2025-3901
Published 21-08-2025Last modified 21-08-2025
Open JSON

Vulnerability summary

CVE-2025-36530 is a medium (CVSS 6.8) Path Traversal vulnerability in mattermost. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 41.4% of scored vulnerabilities.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.49%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-08-2025
    PublishedVulnerability first disclosed.
  2. 21-08-2025
    Last modifiedVulnerability information updated.

Description

Mattermost versions 10.9.x <= 10.9.1, 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate file paths during plugin import operations which allows restricted admin users to install unauthorized custom plugins via path traversal in the import functionality, bypassing plugin signature enforcement and marketplace restrictions.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.49%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

0.00 pp

From 0.49% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.49%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Github.com/mattermost/mattermost-server2 products
  • v5≤ 5.11.1 | All versions (No fix recorded)
  • v6≤ 6.7.2 | All versions (No fix recorded)
Mattermost2 products
  • mattermost≥ 10.9.0, ≤ 10.9.1 | ≥ 10.8.0, ≤ 10.8.3 | ≥ 10.5.0, ≤ 10.5.8 | ≥ 9.11.0, ≤ 9.11.17
  • mattermost_server≥ 9.11.0, < 9.11.18 | ≥ 10.5.0, < 10.5.9 | ≥ 10.8.0, < 10.8.4 | ≥ 10.9.0, < 10.9.2
Github.com/mattermost1 product
  • mattermost-server≥ 10.9.0, < 10.9.2 | ≥ 10.8.0, < 10.8.4 | ≥ 10.5.0, < 10.5.9 | ≥ 9.11.0, < 9.11.18 | ≥ 10.9.0+incompatible, < 10.9.2+incompatible
Github.com/mattermost/mattermost/server1 product
  • v8< 8.0.0-20250619095651-9dd0b3943e55 | All versions (No fix recorded)

4 vendors · 6 products

References

5 links