CVE-2025-9072— One-Click Mattermost Account Takeover via Poisoned RelayState SAML Parameter
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2025-9072
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
One-Click Mattermost Account Takeover via Poisoned RelayState SAML Parameter
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mattermost versions 10.10.x <= 10.10.1, 10.5.x <= 10.5.9, 10.9.x <= 10.9.4 fail to validate the redirect_to parameter, allowing an attacker to craft a malicious link that, once a user authenticates with their SAML provider, could post the user’s cookies to an attacker-controlled URL.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
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 10.10.1及之前的10.10.x版本、10.5.9及之前的10.5.x版本和10.9.4及之前的10.9.x版本存在安全漏洞，该漏洞源于未验证redirect_to参数，可能导致攻击者通过特制链接窃取用户cookie。
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 | 10.10.0 ~ 10.10.1 | - |
II. Public POCs for CVE-2025-9072
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2025-9072
请登录查看更多情报信息。
Same Patch Batch · Mattermost · 2025-09-15 · 4 CVEs total
| CVE-2025-9076 | 6.5 MEDIUM | Mattermost Server exposes sensitive user credentials during shared channel membership sync |
| CVE-2025-9078 | 4.3 MEDIUM | Weak cache keys lead to post IDOR and link preview poisoning |
| CVE-2025-9084 | 3.1 LOW | Open redirect in OAuth login |
IV. Related Vulnerabilities
Same product: 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 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-601
- CVE-2026-42350
Kargo: Open Redirect in UI OIDC Login Flow via redirectTo Qu - CVE-2026-42195
Unvalidated gitlab URL parameter redirects OAuth authorize s - CVE-2026-3318
Multiple vulnerabilities in Cradle e-commerce - CVE-2026-42259
Saltcorn: Open Redirect in `POST /auth/login` due to incompl - CVE-2026-6795
Open Redirect in DivvyDrive Information Technologies' DivvyD
V. Comments for CVE-2025-9072
No comments yet