CVE-2019-20844
MEDIUMCVSS 6.5/10EPSS 0.43%
Last modified
CVE-2019-20844 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An issue was discovered in Mattermost Server before 5.18.0, 5.17.2, 5.16.4, 5.15.4, and 5.9.7. An attacker can spoof a direct-message channel by changing the type of a channel.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
An issue was discovered in Mattermost Server before 5.18.0, 5.17.2, 5.16.4, 5.15.4, and 5.9.7. An attacker can spoof a direct-message channel by changing the type of a channel.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Mattermost | Mattermost Server | < 5.9.7 | — |
| Mattermost | Mattermost Server | >= 5.15.0, < 5.15.4 | — |
| Mattermost | Mattermost Server | >= 5.16.0, < 5.16.4 | — |
| Mattermost | Mattermost Server | >= 5.17.0, < 5.17.2 | — |
| Mattermost | Mattermost Server | 5.18.0 | Rc1 |
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-2019-20844?
An issue was discovered in Mattermost Server before 5.18.0, 5.17.2, 5.16.4, 5.15.4, and 5.9.7. An attacker can spoof a direct-message channel by changing the type of a channel.
How severe is CVE-2019-20844?
CVE-2019-20844 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.
How do I fix CVE-2019-20844?
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.
Are you affected by CVE-2019-20844?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST