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CVE-2025-58073— Arbitrary Mattermost Team can be joined by manipulating the OAuth state

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 10.11.1及之前的10.11.x版本、10.10.2及之前的10.10.x版本和10.5.10及之前的10.5.x版本存在安全漏洞，该漏洞源于未验证用户使用原始邀请令牌加入Mattermost团队的权限，可能导致攻击者通过操纵OAuth状态加入任何团队。

CVSS 8.1 · High EPSS 0.42% · P34

Possible ATT&CK Techniques 1 AI

T1133 · External Remote Services
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I. Basic Information for CVE-2025-58073

Vulnerability Information
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Vulnerability Title
Arbitrary Mattermost Team can be joined by manipulating the OAuth state
Source: CVE Program / CVE List V5
Vulnerability Description
Mattermost versions 10.11.x <= 10.11.1, 10.10.x <= 10.10.2, 10.5.x <= 10.5.10 fail to verify a user has permission to join a Mattermost team using the original invite token which allows any attacked to join any team on a Mattermost server regardless of restrictions via manipulating the OAuth state.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
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 10.11.1及之前的10.11.x版本、10.10.2及之前的10.10.x版本和10.5.10及之前的10.5.x版本存在安全漏洞，该漏洞源于未验证用户使用原始邀请令牌加入Mattermost团队的权限，可能导致攻击者通过操纵OAuth状态加入任何团队。
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 10.11.0 ~ 10.11.1 -

II. Public POCs for CVE-2025-58073

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III. Intelligence Information for CVE-2025-58073

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Same Patch Batch · Mattermost · 2025-10-16 · 7 CVEs total

CVE-2025-58075 8.1 HIGH Arbitrary Mattermost Team can be joined by manipulating the SAML RelayState
CVE-2025-55035 6.1 MEDIUM Mattermost Desktop DoS when user has basic authentication server configured
CVE-2025-41410 5.4 MEDIUM Slack import bypasses email verification for team access controls
CVE-2025-41443 4.3 MEDIUM Guest user can discover active public channels
CVE-2025-10545 3.1 LOW Guest user can add unauthorized team users to private channels
CVE-2025-54499 3.1 LOW Insecure string comparison enables timing attacks

IV. Related Vulnerabilities

Same product: Mattermost
Same vendor: Mattermost
Same weakness: CWE-862

V. Comments for CVE-2025-58073

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