XSS in Outsystems Lifetime Management Console

CVE-2020-13639

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (53.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-13639?
CVE-2020-13639 is a medium-severity vulnerability in Outsystems Lifetime Management Console, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-08-31.
How severe is CVE-2020-13639?
Medium severity. CVSS v3 base score is 6.1 out of 10.