CVE-2019-20861 Code injection in n/a
Attackers can execute arbitrary code on the Mattermost Desktop App by tricking users into clicking a crafted link.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-20861?
CVE-2019-20861 is a high-severity code injection vulnerability in n/a, published on 19 Jun 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An issue was discovered in Mattermost Desktop App before 4.2.2. It allows attackers to execute arbitrary code via a crafted link.
Which versions are affected by CVE-2019-20861?
It affects 1 product.
Products include Mattermost Mattermost Desktop.
How do I fix CVE-2019-20861?
No fix has been published for CVE-2019-20861 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2019-20861 being exploited?
There is no known exploitation of CVE-2019-20861 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2016-11064 Code injection in n/a
- CVE-2019-20856 Code injection in n/a
- CVE-2026-1046 Arbitrary application execution via unvalidated server-controlled URLs in Help menu
- CVE-2020-14456 Security feature bypass in n/a
- CVE-2026-8075 Posting a malicious markdown image crashes the Mattermost Desktop App
Sources
Also known as GHSA-xm46-35x5-j3c7.