What is CVE-2025-6508?

CVE-2025-6508 is a medium-severity vulnerability in Wso2 API Manager, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-08-06.

How severe is CVE-2025-6508?

Medium severity. CVSS v3 base score is 4.3 out of 10.

XSS in Wso2 API Manager

CVE-2025-6508

The Swagger UI Try-out console within the API Publisher documentation allows an external Swagger API definition URL to be loaded, overriding the existing API definitions within the Publisher portal. By exploiting this vulnerability, malicious actors can deceive users into interacting with these overwritten API definitions. This could lead to the exposure of sensitive information or the initiation of unintended requests to backend services.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (10.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Wso2 Api Manager — versions 4.1.0, 4.2.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

ed10eef1-636d-4fbe-9993-6890dfa878f8 (vendor-advisory)

Frequently asked questions

What is CVE-2025-6508?: CVE-2025-6508 is a medium-severity vulnerability in Wso2 API Manager, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-08-06.
How severe is CVE-2025-6508?: Medium severity. CVSS v3 base score is 4.3 out of 10.