CVE-2019-20858
HIGHCVSS 7.5/10EPSS 1.11%
Last modified
CVE-2019-20858 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in Mattermost Server before 5.15.0. It allows attackers to cause a denial of service (CPU consumption) via crafted characters in a SQL LIKE clause to an APIv4 endpoint.. EPSS estimates a 1.11% chance of exploitation in the next 30 days.
Description
An issue was discovered in Mattermost Server before 5.15.0. It allows attackers to cause a denial of service (CPU consumption) via crafted characters in a SQL LIKE clause to an APIv4 endpoint.
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 Server | < 5.15.0 |
References
- https://mattermost.com/security-updates/Vendor Advisory
- https://mattermost.com/security-updates/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-20858?
An issue was discovered in Mattermost Server before 5.15.0. It allows attackers to cause a denial of service (CPU consumption) via crafted characters in a SQL LIKE clause to an APIv4 endpoint.
How severe is CVE-2019-20858?
CVE-2019-20858 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.11% probability of exploitation in the next 30 days.
How do I fix CVE-2019-20858?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
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 2019
- CVE-2019-20852An issue was discovered in Mattermost Mobile Apps before 1.2…7.5
- CVE-2019-20853An issue was discovered in Mattermost Packages before 5.16.3…9.8
- CVE-2019-20854An issue was discovered in Mattermost Server before 5.17.0. …7.5
- CVE-2019-20855An issue was discovered in Mattermost Server before 5.16.1, …7.5
- CVE-2019-20856An issue was discovered in Mattermost Desktop App before 4.3…9.8
- CVE-2019-20857An issue was discovered in Mattermost Server before 5.16.0. …7.5
- CVE-2019-20859An issue was discovered in Mattermost Server before 5.15.0. …7.5
- CVE-2019-2086In libxaac, there is a possible out of bounds write due to a…8.8
- CVE-2019-20860An issue was discovered in Mattermost Server before 5.14.0, …5.5
- CVE-2019-20861An issue was discovered in Mattermost Desktop App before 4.2…8.8
- CVE-2019-20862An issue was discovered in Mattermost Server before 5.13.0. …7.5
- CVE-2019-20863An issue was discovered in Mattermost Server before 5.13.0. …7.5
Are you affected by CVE-2019-20858?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST