CVE-2020-14458
HIGHCVSS 7.5/10EPSS 1.14%
Last modified
CVE-2020-14458 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in Mattermost Server before 5.19.0. Attackers can discover private channels via the "get channel by name" API, aka MMSA-2020-0004.. EPSS estimates a 1.14% chance of exploitation in the next 30 days.
Description
An issue was discovered in Mattermost Server before 5.19.0. Attackers can discover private channels via the "get channel by name" API, aka MMSA-2020-0004.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost Server | < 5.19.0 |
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-2020-14458?
An issue was discovered in Mattermost Server before 5.19.0. Attackers can discover private channels via the "get channel by name" API, aka MMSA-2020-0004.
How severe is CVE-2020-14458?
CVE-2020-14458 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.14% probability of exploitation in the next 30 days.
How do I fix CVE-2020-14458?
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 2020
- CVE-2020-14452An issue was discovered in Mattermost Server before 5.21.0. …5.3
- CVE-2020-14453An issue was discovered in Mattermost Server before 5.21.0. …7.5
- CVE-2020-14454An issue was discovered in Mattermost Desktop App before 4.4…6.1
- CVE-2020-14455An issue was discovered in Mattermost Desktop App before 4.4…6.5
- CVE-2020-14456An issue was discovered in Mattermost Desktop App before 4.4…7.3
- CVE-2020-14457An issue was discovered in Mattermost Server before 5.20.0. …5.3
- CVE-2020-14459An issue was discovered in Mattermost Server before 5.19.0. …7.5
- CVE-2020-1446A remote code execution vulnerability exists in Microsoft Wo…8.8
- CVE-2020-14460An issue was discovered in Mattermost Server before 5.19.0, …6.5
- CVE-2020-14461Zyxel Armor X1 WAP6806 1.00(ABAL.6)C0 devices allow Director…8.6
- CVE-2020-14462CALDERA 2.7.0 allows XSS via the Operation Name box.5.4
- CVE-2020-14467Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
Are you affected by CVE-2020-14458?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST