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CVE-2024-1888— Existing server guests invited to the team by members without "invite_guest" permission

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，该漏洞源于在邀请其他团队的人加入团队时无法检查“invite_guest”权限。

CVSS 4.3 · Medium EPSS 0.33% · P24
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I. Basic Information for CVE-2024-1888

Vulnerability Information
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Vulnerability Title
Existing server guests invited to the team by members without "invite_guest" permission
Source: CVE Program / CVE List V5
Vulnerability Description
Mattermost fails to check the "invite_guest" permission when inviting guests of other teams to a team, allowing a member with permissions to add other members but not to add guests to add a guest to a team as long as the guest was already a guest in another team of the server
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
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，该漏洞源于在邀请其他团队的人加入团队时无法检查“invite_guest”权限。
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 0 ~ 9.4.1 -

II. Public POCs for CVE-2024-1888

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III. Intelligence Information for CVE-2024-1888

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Same Patch Batch · Mattermost · 2024-02-29 · 9 CVEs total

CVE-2024-23493 4.3 MEDIUM Team associated AD/LDAP Groups Leaked due to missing authorization
CVE-2024-1887 4.3 MEDIUM Public channel post content accessible without membership when compliance export is enable
CVE-2024-24988 4.3 MEDIUM Excessive resource consumption when sending long emoji names in user custom status
CVE-2024-1942 4.3 MEDIUM Mattermost 安全漏洞
CVE-2024-1953 4.3 MEDIUM Mattermost 安全漏洞
CVE-2024-23488 3.1 LOW Files of archived channels accessible with the “Allow users to view archived channels” opt
CVE-2024-1952 3.1 LOW Mattermost 安全漏洞
CVE-2024-1949 2.6 LOW Mattermost 安全漏洞

IV. Related Vulnerabilities

Same product: Mattermost
Same vendor: Mattermost
Same weakness: CWE-284

V. Comments for CVE-2024-1888

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