CVE-2025-55070— Lack of MFA enforcement in WebSocket connections
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 11之前版本存在安全漏洞，该漏洞源于WebSocket连接未强制执行多因素身份验证，可能导致未经验证的用户访问敏感信息。
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2025-55070
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Lack of MFA enforcement in WebSocket connections
Source: CVE Program / CVE List V5
Vulnerability Description
Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
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 11之前版本存在安全漏洞，该漏洞源于WebSocket连接未强制执行多因素身份验证，可能导致未经验证的用户访问敏感信息。
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 | <11 ~ <11 | - |
|
II. Public POCs for CVE-2025-55070
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2025-55070
请登录查看更多情报信息。
Same Patch Batch · Mattermost · 2025-11-14 · 5 CVEs total
| CVE-2025-55073 | 5.4 MEDIUM | MS Teams plugin OAuth allows editing arbitrary posts |
| CVE-2025-11794 | 4.9 MEDIUM | Password hash and MFA secret returned in user email verification endpoint |
| CVE-2025-11776 | 4.3 MEDIUM | Guest user can discover archived public channels |
| CVE-2025-41436 | 3.1 LOW | Unauthorized access to archived channel content via threads interface |
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-306
-
CVE-2026-84485
APITable through 1.13.0-beta.1 Missing Authentication on the -
CVE-2026-84700
Pika Unauthenticated Replication Access via Internal Protobu -
CVE-2026-84696
Phison PS3111-S11 Controller Firmware Missing Authentication -
CVE-2024-35585
Oxford Nanopore MinKNOW 24.06 前 IP 认证漏洞 -
CVE-2026-84423
Casdoor upload-resource API resource.go missing authenticati
V. Comments for CVE-2025-55070
No comments yet