CVE-2025-4981CRITICAL 9.9EPSS p46.3%
CVE-2025-4981CVE-2025-4981
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.
Scoring
| CVSS 3.1 | 9.9 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 0.65% probability of exploitation · percentile 46.3% · 2026-06-18T12:00:27Z |
| Published | 2025-06-20 |
| Last modified | 2025-07-08 |
Underlying weaknesses· 1
References
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Uncontrolled Search Path Elementcwe-427 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.