Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2023-6202— Insecure Direct Object Reference in /plugins/focalboard/ api/v2/users of Mattermost Boards

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，该漏洞源于无法在 /plugins/focalboard/api/v2/users 端点中执行适当的授权，从而允许作为访客用户且知道其他用户 ID 的攻击者通过 Mattermost Boards 获取其信息（例如姓名、昵称）。

CVSS 4.3 · Medium EPSS 0.44% · P37
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-6202

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Insecure Direct Object Reference in /plugins/focalboard/ api/v2/users of Mattermost Boards
Source: CVE Program / CVE List V5
Vulnerability Description
Mattermost fails to perform proper authorization in the /plugins/focalboard/api/v2/users endpoint allowing an attacker who is a guest user and knows the ID of another user to get their information (e.g. name, surname, nickname) via Mattermost Boards.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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，该漏洞源于无法在 /plugins/focalboard/api/v2/users 端点中执行适当的授权，从而允许作为访客用户且知道其他用户 ID 的攻击者通过 Mattermost Boards 获取其信息（例如姓名、昵称）。
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 ~ 7.8.12 -

II. Public POCs for CVE-2023-6202

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2023-6202

请登录查看更多情报信息。

Same Patch Batch · Mattermost · 2023-11-27 · 9 CVEs total

CVE-2023-47168 4.3 MEDIUM Open redirect in /oauth/<service>/mobile_login?redirect_to=
CVE-2023-43754 4.3 MEDIUM Permalink previews displayed for posts in archived channels even if users are disallowed t
CVE-2023-48369 4.3 MEDIUM Log Flooding due to specially crafted requests in different endpoints
CVE-2023-40703 4.3 MEDIUM Denial of Service via specially crafted block fields in Mattermost Boards
CVE-2023-48268 4.3 MEDIUM Denial of Service via Board Import Zip Bomb
CVE-2023-45223 4.3 MEDIUM Users full name disclosure through Mattermost Boards with Show Full Name Option disabled
CVE-2023-47865 4.3 MEDIUM Username and Icon override can be used by members when Hardened Mode is enabled
CVE-2023-35075 3.1 LOW HTML injection via channel autocomplete

IV. Related Vulnerabilities

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

V. Comments for CVE-2023-6202

No comments yet

Leave a comment