CVE-2019-20851 Path traversal in n/a
An attacker can exploit a directory traversal flaw in the Video Preview feature to overwrite arbitrary files on the device.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-20851?
CVE-2019-20851 is a critical path traversal vulnerability in Mattermost Mattermost, published on 19 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-22
Which versions are affected by CVE-2019-20851?
It affects 1 product.
Products include Mattermost Mattermost.
How do I fix CVE-2019-20851?
No fix has been published for CVE-2019-20851 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2019-20851 being exploited?
There is no known exploitation of CVE-2019-20851 in the wild and no public exploit code.
Other vulnerabilities in Mattermost Mattermost
- CVE-2024-39274 Malicious remote can add users to arbitrary teams and channels
- CVE-2024-39777 Malicious remote can invite itself to an arbitrary local channel
- CVE-2024-39830 Timing attack during remote cluster token comparison when shared channels are enabled
- CVE-2023-3615 Lack of server certificate validation in websockets connection
- CVE-2020-13891 Information disclosure in n/a
Sources
Also known as GHSA-hjj4-ch7m-p53m.