Vulnerability · Published Jul 6, 2026 · Assigned by WSO2
CVE-2025-8591Reflected Cross-Site Scripting via URL Parameter in Multiple WSO2 Products Enables UI Modification
Medium 6.1
In plain English
A medium-severity cross-site scripting in WSO2 API Control Plane from WSO2. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).
Official description
The software accepts user-supplied input via a URL parameter without adequate output encoding before reflecting it back to the user's browser. This condition allows an attacker to inject malicious script content into pages served by the application. By leveraging this weakness, an attacker can cause the user's browser to redirect to a malicious website, modify the UI of the webpage, or retrieve information from the browser. However, the impact is mitigated by the use of httpOnly flags on session-related cookies, preventing session hijacking.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WSO2 | WSO2 Identity Server | 5.10.0 – before 5.10.0.3815.10.0 – before 5.10.0.3846.0.0 – before 6.0.0.2557.0.0 – before 7.0.0.1317.1.0 – before 7.1.0.217.1.0 – before 7.1.0.51 |
| WSO2 | WSO2 API Manager | 3.1.0 – before 3.1.0.3553.2.0 – before 3.2.0.4593.2.1 – before 3.2.1.784.0.0 – before 4.0.0.3804.1.0 – before 4.1.0.2434.2.0 – before 4.2.0.1834.3.0 – before 4.3.0.94 |
| WSO2 | WSO2 API Control Plane | 4.5.0 – before 4.5.0.444.6.0 – before 4.6.0.8 |
| WSO2 | WSO2 Traffic Manager | 4.5.0 – before 4.5.0.424.6.0 – before 4.6.0.7 |
| WSO2 | WSO2 Universal Gateway | 4.5.0 – before 4.5.0.424.6.0 – before 4.6.0.7 |
| WSO2 | WSO2 Open Banking AM | 2.0.0 – before 2.0.0.404 |
| WSO2 | WSO2 Identity Server as Key Manager | 5.10.0 – before 5.10.0.375 |
| WSO2 | WSO2 Open Banking IAM | 2.0.0 – before 2.0.0.424 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N