CVE-2020-14455
MEDIUMCVSS 6.5/10EPSS 1.17%
Last modified
CVE-2020-14455 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An issue was discovered in Mattermost Desktop App before 4.4.0. Prompting for HTTP Basic Authentication is mishandled, allowing phishing, aka MMSA-2020-0007.. EPSS estimates a 1.17% chance of exploitation in the next 30 days.
Description
An issue was discovered in Mattermost Desktop App before 4.4.0. Prompting for HTTP Basic Authentication is mishandled, allowing phishing, aka MMSA-2020-0007.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost Desktop | < 4.4.0 |
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-2020-14455?
An issue was discovered in Mattermost Desktop App before 4.4.0. Prompting for HTTP Basic Authentication is mishandled, allowing phishing, aka MMSA-2020-0007.
How severe is CVE-2020-14455?
CVE-2020-14455 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.
How do I fix CVE-2020-14455?
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
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- CVE-2020-14450An issue was discovered in Mattermost Server before 5.22.0. …7.5
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- 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-2020-14456An 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-2020-14458An issue was discovered in Mattermost Server before 5.19.0. …7.5
- 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
Are you affected by CVE-2020-14455?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST