9.9

CVE-2025-4981: mattermost Uncontrolled Search Path Element

CVSS: 9.9v3.1CriticalAnalyzed
AliasesGHSA-qh58-9v3j-wcjcGO-2025-3769
Published 20-06-2025Last modified 20-06-2025
Open JSON

Vulnerability summary

CVE-2025-4981 is a critical (CVSS 9.9) Uncontrolled Search Path Element vulnerability in mattermost. EPSS estimates a 0.84% chance of exploitation in the next 30 days, higher than 57.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.9/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.84%
0%100%
Low · -0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

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

Timeline

  1. 20-06-2025
    PublishedVulnerability first disclosed.
  2. 20-06-2025
    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 sanitize filenames in the archive extractor which allows authenticated users to write files to arbitrary locations on the filesystem via uploading archives with path traversal sequences in filenames, potentially leading to remote code execution. The vulnerability impacts instances where file uploads and document search by content is enabled (FileSettings.EnableFileAttachments = true and FileSettings.ExtractContent = true). These configuration settings are enabled by default.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.84%

Chance of exploitation in the next 30 days

Percentile

57%

Versus all other CVEs

30-day change

-0.01 pp

From 0.85% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.84%

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
  • 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< 0.0.0-20250519205859-65aec10162f6 | ≥ 10.8.0+incompatible, < 10.8.1+incompatible
Github.com/mattermost/mattermost/server1 product
  • v8≥ 10.5.0, < 10.5.6 | ≥ 9.11.0, < 9.11.16 | ≥ 10.8.0, < 10.8.1 | ≥ 10.7.0, < 10.7.3 | ≥ 10.6.0, < 10.6.6 | < 8.0.0-20250519205859-65aec10162f6

4 vendors · 6 products

References

5 links