CVE-2019-20851
CRITICALCVSS 9.1/10EPSS 1.39%
Last modified
CVE-2019-20851 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. An issue was discovered in Mattermost Mobile Apps before 1.26.0. An attacker can use directory traversal with the Video Preview feature to overwrite arbitrary files on a device.. EPSS estimates a 1.39% chance of exploitation in the next 30 days.
Description
An issue was discovered in Mattermost Mobile Apps before 1.26.0. An attacker can use directory traversal with the Video Preview feature to overwrite arbitrary files on a device.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | < 1.26.0 |
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-2019-20851?
An issue was discovered in Mattermost Mobile Apps before 1.26.0. An attacker can use directory traversal with the Video Preview feature to overwrite arbitrary files on a device.
How severe is CVE-2019-20851?
CVE-2019-20851 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.39% probability of exploitation in the next 30 days.
How do I fix CVE-2019-20851?
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
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- CVE-2019-20849An issue was discovered in Mattermost Mobile Apps before 1.2…5.3
- CVE-2019-2085In libxaac there is a possible out of bounds write due to a …8.8
- CVE-2019-20850An issue was discovered in Mattermost Mobile Apps before 1.2…5.3
- 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
Are you affected by CVE-2019-20851?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST