CVE-2020-5241 XSS/Script injection vulnerability in matestack
Attackers can inject malicious scripts via XSS in matestack-ui-core, potentially executing code in user browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-5241?
CVE-2020-5241 is a high-severity cross-site scripting vulnerability in matestack-ui-core, published on 12 Feb 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
matestack-ui-core (RubyGem) before 0.7.4 is vulnerable to XSS/Script injection. This vulnerability is patched in version 0.7.4.
Which versions are affected by CVE-2020-5241?
2 open source packages ship an affected version, including matestack-ui-core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
matestack-ui-core RubyGems | All versions | 0.7.4 |
matestack-ui-core RubyGems | All versions | 0.7.4 |
Products include Matestack Ui-Core.
How do I fix CVE-2020-5241?
Upgrade matestack-ui-core to 0.7.4 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2020-5241 being exploited?
There is no known exploitation of CVE-2020-5241 in the wild and no public exploit code.
Sources
Also known as GHSA-3jqw-vv45-mjhh.