CVE-2023-40703
Last modified
CVE-2023-40703 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing a attacker to consume excessive resources, possibly leading to Denial of Service, by patching the field of a block using a specially crafted string. . EPSS estimates a 0.72% chance of exploitation in the next 30 days.
Description
Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing a attacker to consume excessive resources, possibly leading to Denial of Service, by patching the field of a block using a specially crafted string.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | <= 7.8.12 |
| Mattermost | Mattermost | >= 8.0.0, <= 8.1.3 |
| Mattermost | Mattermost | >= 9.0.0, <= 9.0.1 |
| Mattermost | Mattermost | 9.1.0 |
References
- https://mattermost.com/security-updatesVendor Advisory
- https://mattermost.com/security-updatesVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-40703?
How severe is CVE-2023-40703?
How do I fix CVE-2023-40703?
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-2023-40694IBM Watson CP4D Data Stores 4.0.0 through 4.8.4 stores poten…5.5
- CVE-2023-40695IBM Cognos Controller 10.4.1, 10.4.2, and 11.0.0 does not in…8.8
- CVE-2023-40696IBM Cognos Controller 10.4.1, 10.4.2, and 11.0.0 uses weaker…7.5
- CVE-2023-40699 IBM InfoSphere Information Server 11.7 could allow a remo…7.5
- CVE-2023-4070Type Confusion in V8 in Google Chrome prior to 115.0.5790.17…8.1
- CVE-2023-40702PingOne MFA Integration Kit contains a vulnerability where t…7.7
- CVE-2023-40704The product does not require unique and complex passwords to…9.8
- CVE-2023-40705Stored cross-site scripting vulnerability in Map setting pag…5.4
- CVE-2023-40706There is no limit on the number of login attempts in the web…9.8
- CVE-2023-40707There are no requirements for setting a complex password in …7.5
- CVE-2023-40708The File Transfer Protocol (FTP) port is open by default in …5.3
- CVE-2023-40709An adversary could crash the entire device by sending a larg…7.5
Are you affected by CVE-2023-40703?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST