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Mattermost security vulnerabilities

🗓️ 15 Sep 2025 00:00:00Reported by China National Vulnerability Database of Information SecurityType 
cnnvd
 cnnvd
🔗 www.cnnvd.org.cn👁 25 Views

Mattermost 10.5.9 and earlier have improper redirect URL validation enabling malicious OAuth redirects.

Related
Refs
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC
Mattermost URL Redirection Phishing
23 Sep 202500:00
–bdu_fstec
circl
Circl
CVE-2025-9084
15 Sep 202513:55
–circl
cve
CVE
CVE-2025-9084
15 Sep 202510:22
–cve
cvelist
Cvelist
CVE-2025-9084 Open redirect in OAuth login
15 Sep 202510:22
–cvelist
euvd
EUVD
EUVD-2025-29172
3 Oct 202520:07
–euvd
github
Github Security Blog
Mattermost Open Redirect vulnerability
15 Sep 202512:31
–github
nessus
Tenable Nessus
Mattermost Server 10.5.x < 10.5.10 / 10.11.0 URL Redirection (MMSA-2025-00511)
30 Sep 202500:00
–nessus
mend
Mend
CVE-2025-9084
15 Sep 202510:22
–mend
nvd
NVD
CVE-2025-9084
15 Sep 202511:15
–nvd
osv_ghsa
osv_ghsa
GHSA-HM95-JX66-G2GH Mattermost Open Redirect vulnerability
15 Sep 202512:31
–osv_ghsa
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25 May 2026 00:00Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.13.1 - 6.1
EPSS0.00172
SSVC
25