CVE-2020-27359 Cross-site scripting in n/a
Attackers can inject malicious scripts via filenames in REDCap Messenger, potentially executing code on victim accounts including admins.
- 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
- None listed
What is CVE-2020-27359?
CVE-2020-27359 is a medium-severity cross-site scripting vulnerability in n/a, published on 31 Oct 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
A cross-site scripting (XSS) issue in REDCap 8.11.6 through 9.x before 10 allows attackers to inject arbitrary JavaScript or HTML in the Messenger feature. It was found that the filename of the image or file attached in a message could be used to perform this XSS attack. A user could craft a message and send it to anyone on the platform including admins. The XSS payload would execute on the other account without interaction from the user on several pages.
Weakness: CWE-79
Which versions are affected by CVE-2020-27359?
It affects 1 product.
Products include Evms Redcap.
How do I fix CVE-2020-27359?
No fix has been published for CVE-2020-27359 yet. Limit exposure of the affected software until one is available.
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-2020-27359 being exploited?
There is no known exploitation of CVE-2020-27359 in the wild and no public exploit code.
Sources
Also known as GHSA-hx87-ccx6-jgpm.