CVE-2023-27265— Disclosure of team owner email address when regenerating Invite ID
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I. Basic Information for CVE-2023-27265
Vulnerability Information
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Vulnerability Title
Disclosure of team owner email address when regenerating Invite ID
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mattermost fails to honor the ShowEmailAddress setting when constructing a response to the "Regenerate Invite Id" API endpoint, allowing an attacker with team admin privileges to learn the team owner's email address in the response.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
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，该漏洞源于允许具有团队管理员权限的攻击者在响应中了解团队所有者的电子邮件地址。
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 | 5.12.0 ~ 7.7.0 | - |
II. Public POCs for CVE-2023-27265
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Mattermost · 2023-02-27 · 4 CVEs total
| CVE-2023-27264 | 7.1 HIGH | IDOR: Updating a playbook via the Playbooks API |
| CVE-2023-27263 | 4.3 MEDIUM | IDOR: Accessing playbook runs via the Playbooks Runs API |
| CVE-2023-27266 | 2.7 LOW | Disclosure of team owner email address when when accessing the teams API |
IV. Related Vulnerabilities
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Unbounded Request Body Read in MS Teams Plugin {{/changes}} - CVE-2026-21388
Unbounded Request Body Read in MS Teams Plugin {{/lifecycle}
Same vendor: Mattermost
- CVE-2026-3590
Race Condition in Guest Magic Link Authentication Allows Tok - CVE-2026-28741
CSRF Protection Bypass Allows Updating a User's Authenticati - CVE-2026-27769
Connected Workspaces: Malicious remote server can manipulate - CVE-2026-24661
Unbounded Request Body Read in MS Teams Plugin {{/changes}} - CVE-2026-21388
Unbounded Request Body Read in MS Teams Plugin {{/lifecycle}
Same weakness: CWE-200
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V. Comments for CVE-2023-27265
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