What this actually is.
Technical background, root cause, and affected surface.
A cross-site scripting (XSS) attack can cause arbitrary code (JavaScript) to run in a user’s browser while the browser is connected to a trusted web site. The application targets your users and not the application itself, but it uses your application as the vehicle for the attack. XSS payload is executed when the user loads a page created in WSO2 Identity Server version 5.9.0 Product.
*Affected Products: WSO2 IS as Key Manager 5.9.0 or earlier, WSO2 Identity Server 5.9.0 or earlier
- Vendor
- WSO2
- Affected Product
- See Full List Below*
- CVE
- CVE-2020-14444
- Securin ID
- 2020-CSW-05-1042
- Status
- Fixed
- Date
- February 10, 2020
- Severity
- Medium
- CVSS Score
- 5.4
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CWE
- CWE-79
From one request
to root shell.
Reproduced in a sandboxed environment. Requires only LAN or WiFi adjacency.
The following vulnerability was tested on WSO2 Identity Server version 5.9.0 Product.
What an attacker does to you.
Post-exploitation outcomes mapped to CVSS impact metrics.
By leveraging an XSS attack, an attacker can make the browser get redirected to a malicious website, make changes in the UI of the web page, retrieve information from the browser or harm otherwise. However, since all the session related sensitive cookies are set with httpOnly flag and protected, session hijacking or similar attacks would not be possible.
Fix it. In this order.
A runbook, not a checklist. Sequence matters — assume compromise before you act.
Download and apply the relevant fixes based on the changes from the public fix:
disclose@securin.ioVendors moved in days.
Attackers in hours.
Reconstructed from vendor advisories, CISA bulletins, and Securin research records.
Discovered in WSO2 Identity Server Manager version 5.9.0.
CSW conducted an Internal Review
Reported to the WSO2 security team
Timeline recorded · Disclosure coordinated by Securin
Cite, verify, go deeper.
Primary sources — NVD, CISA KEV, and machine-readable IoC feed.