CVE-2020-13639 Cross-site scripting in n/a
Unauthenticated attackers can inject malicious JavaScript into feedback content, executing code in administrators' browsers to potentially take over accounts.
- 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-2020-13639?
CVE-2020-13639 is a medium-severity cross-site scripting vulnerability in n/a, published on 31 Aug 2021. 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
A stored XSS vulnerability was discovered in the ECT Provider in OutSystems before 2020-09-04, affecting generated applications. It could allow an unauthenticated remote attacker to craft and store malicious Feedback content into /ECT_Provider/, such that when the content is viewed (it can only be viewed by Administrators), attacker-controlled JavaScript will execute in the security context of an administrator's browser. This is fixed in Outsystems 10.0.1005.2, Outsystems 11.9.0 Platform Server, and Outsystems 11.7.0 LifeTime Management Console.
Weakness: CWE-79
Which versions are affected by CVE-2020-13639?
It affects 3 products.
Products include Outsystems Lifetime Management Console, Outsystems Outsystems, Outsystems Platform Server.
How do I fix CVE-2020-13639?
No fix has been published for CVE-2020-13639 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-2020-13639 being exploited?
There is no known exploitation of CVE-2020-13639 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-f22p-xx2m-5g9m.