CVE-2020-13639

MEDIUM
6.1
CVSS Score
Published: August 31, 2021 at 03:56 AM UTC
Updated: June 17, 2026 at 02:53 AM UTC
3 products affected across 1 vendorOutsystemsPlatform ServerLifetime Management Console

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.8%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

11 ≤ v < 11.7.0
Affected range stops below 11.7.0, so it looks safe — our inference, not a vendor statement
10 ≤ v < 10.0.1005.2
Affected range stops below 10.0.1005.2, so it looks safe — our inference, not a vendor statement
11 ≤ v < 11.9.0
Affected range stops below 11.9.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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