CVE-2023-47858— Details of archived public channels are leaked to members of another team
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，该漏洞源于存在权限验证错误问题，导致攻击者可通过get/api/v4/teams/<team id>/channels/deleted端点获取另一个团队的详细信息。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud Storage
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2023-47858
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Details of archived public channels are leaked to members of another team
Source: CVE Program / CVE List V5
Vulnerability Description
Mattermost fails to properly verify the permissions needed for viewing archived public channels, allowing a member of one team to get details about the archived public channels of another team via the GET /api/v4/teams/<team-id>/channels/deleted endpoint.
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，该漏洞源于存在权限验证错误问题，导致攻击者可通过get/api/v4/teams/<team id>/channels/deleted端点获取另一个团队的详细信息。
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 ~ 9.2.2 | - |
|
II. Public POCs for CVE-2023-47858
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2023-47858
请登录查看更多情报信息。
Same Patch Batch · Mattermost · 2024-01-02 · 3 CVEs total
| CVE-2023-48732 | 4.3 MEDIUM | Keywords that trigger mentions are leaked to other users |
| CVE-2023-50333 | 3.7 LOW | Lack of restriction to manage group names for freshly demoted guests |
IV. Related Vulnerabilities
Same product: Mattermost
-
CVE-2026-75587
Plaintext pre-auth secret exposure via Desktop App diagnosti -
CVE-2026-9693
Mattermost thread memberships persist after team removal, ex -
CVE-2026-9859
Mattermost Boards plugin didn’t enforce role-based authoriza -
CVE-2026-9816
Insufficient server-side validation of board member role fie -
CVE-2026-10080
Boards plugin panics on WebSocket command with non-string fi
Same vendor: Mattermost
-
CVE-2026-75587
Plaintext pre-auth secret exposure via Desktop App diagnosti -
CVE-2026-9693
Mattermost thread memberships persist after team removal, ex -
CVE-2026-9859
Mattermost Boards plugin didn’t enforce role-based authoriza -
CVE-2026-9816
Insufficient server-side validation of board member role fie -
CVE-2026-10080
Boards plugin panics on WebSocket command with non-string fi
Same weakness: CWE-284
-
CVE-2026-76603
Joomla Extension - fabrikar.com - Unauthenticated row disclo -
CVE-2026-76597
Joomla Extension - fabrikar.com - Unauthenticated arbitrary -
CVE-2026-76598
Joomla Extension - fabrikar.com - Unauthenticated arbitrary -
CVE-2026-76596
Joomla Extension - fabrikar.com - Unauthenticated table trun -
CVE-2026-76600
Joomla Extension - fabrikar.com - Unauthenticated deletion o
V. Comments for CVE-2023-47858
No comments yet