CVE-2023-49809
Last modified
CVE-2023-49809 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled. . EPSS estimates a 0.64% chance of exploitation in the next 30 days.
Description
Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost Server | <= 8.1.5 |
| Mattermost | Mattermost Server | >= 9.0.0, <= 9.1.0 |
References
- https://mattermost.com/security-updatesIssue Tracking, Vendor Advisory
- https://mattermost.com/security-updatesIssue Tracking, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-49809?
How severe is CVE-2023-49809?
How do I fix CVE-2023-49809?
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 2023
- CVE-2023-49801Lif Auth Server is a server for validating logins, managing …7.5
- CVE-2023-49802The LinkedCustomFields plugin for MantisBT allows users to l…6.1
- CVE-2023-49803@koa/cors npm provides Cross-Origin Resource Sharing (CORS) …7.5
- CVE-2023-49804Uptime Kuma is an easy-to-use self-hosted monitoring tool. P…7.8
- CVE-2023-49805Uptime Kuma is an easy-to-use self-hosted monitoring tool. P…8.8
- CVE-2023-49807Stored cross-site scripting vulnerability when processing th…5.4
- CVE-2023-4981Cross-site Scripting (XSS) - DOM in GitHub repository libren…5.4
- CVE-2023-49810A login attempt restriction bypass vulnerability exists in t…6.5
- CVE-2023-49811Rejected reason: This is unused.
- CVE-2023-49812Authorization Bypass Through User-Controlled Key vulnerabili…7.5
- CVE-2023-49813Improper Neutralization of Input During Web Page Generation …6.1
- CVE-2023-49814Unrestricted Upload of File with Dangerous Type vulnerabilit…7.2
Are you affected by CVE-2023-49809?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST