XSS in Wso2 API Control Plane

CVE-2025-8591

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (5.8th 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-2025-8591?
CVE-2025-8591 is a medium-severity vulnerability in Wso2 API Control Plane, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-07-06.
How severe is CVE-2025-8591?
Medium severity. CVSS v3 base score is 6.1 out of 10.