CVE-2025-8402
Last modified
CVE-2025-8402 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to validate import data which allows a system admin to crash the server via the bulk import feature.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
Description
Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to validate import data which allows a system admin to crash the server via the bulk import feature.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost Server | >= 9.11.0, < 9.11.18 |
| Mattermost | Mattermost Server | >= 10.5.0, < 10.5.9 |
| Mattermost | Mattermost Server | >= 10.8.0, < 10.8.4 |
| Mattermost | Mattermost Server | >= 10.9.0, < 10.9.4 |
| Mattermost | Mattermost Server | 10.10.0 |
References
- https://mattermost.com/security-updatesVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-8402?
How severe is CVE-2025-8402?
How do I fix CVE-2025-8402?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-8396Insufficiently specific bounds checking on authorization hea…6.9
- CVE-2025-8397The Save as PDF Button plugin for WordPress is vulnerable to…6.4
- CVE-2025-8398The azurecurve BBCode plugin for WordPress is vulnerable to …6.4
- CVE-2025-8399The Mmm Unity Loader plugin for WordPress is vulnerable to S…6.4
- CVE-2025-8400The Image Gallery plugin for WordPress is vulnerable to Refl…6.1
- CVE-2025-8401The HT Mega – Absolute Addons For Elementor plugin for WordP…4.3
- CVE-2025-8404Stack buffer overflow vulnerability exists in the Supermicro…5.5
- CVE-2025-8405GitLab has remediated a security issue in GitLab CE/EE affec…7.7
- CVE-2025-8406ZenML version 0.83.1 is affected by a path traversal vulnera…7.8
- CVE-2025-8407A vulnerability, which was classified as critical, has been …9.8
- CVE-2025-8408A vulnerability, which was classified as critical, was found…9.8
- CVE-2025-8409A vulnerability has been found in code-projects Vehicle Mana…9.8
Are you affected by CVE-2025-8402?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST