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CVE-2025-36530— Import Path Traversal Enables Unauthorized Unsigned Plugin Installation

Quick assessment

Affected
Mattermost Mattermost
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost存在安全漏洞，该漏洞源于插件导入操作中文件路径验证不足，可能导致路径遍历攻击。以下版本受到影响：10.9.1及之前版本、10.8.3及之前版本、10.5.8及之前版本和9.11.17及之前版本。

CVSS 6.8 · Medium EPSS 0.49% · P41
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I. Basic Information for CVE-2025-36530

Vulnerability Information
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Vulnerability Title
Import Path Traversal Enables Unauthorized Unsigned Plugin Installation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Mattermost 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost存在安全漏洞，该漏洞源于插件导入操作中文件路径验证不足，可能导致路径遍历攻击。以下版本受到影响：10.9.1及之前版本、10.8.3及之前版本、10.5.8及之前版本和9.11.17及之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mattermost Mattermost 10.9.0 ~ 10.9.1 -

II. Public POCs for CVE-2025-36530

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III. Intelligence Information for CVE-2025-36530

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Same Patch Batch · Mattermost · 2025-08-21 · 9 CVEs total

CVE-2025-49222 6.8 MEDIUM Mattermost Shared Channel Upload Type Validation Bypass
CVE-2025-8023 6.8 MEDIUM Path Traversal in Template Upload Allows Uploading Files Outside Target Directory
CVE-2025-8402 4.9 MEDIUM Nil pointer dereference in bulk import crashes server
CVE-2025-6465 4.3 MEDIUM Path traversal in image upload with preview overwrite
CVE-2025-47870 4.3 MEDIUM Team invite ID leaked to team admin with no member invite privileges
CVE-2025-53971 3.8 LOW Channel and Team Membership APIs inadvertently allow loss of Member privileges.
CVE-2025-47700 3.5 LOW AI plugin APIs can be triggered using post actions
CVE-2025-49810 3.5 LOW Thread summarization allows persistent access to channel

IV. Related Vulnerabilities

Same product: Mattermost
Same vendor: Mattermost
Same weakness: CWE-22

V. Comments for CVE-2025-36530

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