CVE-2025-4760 Authenticated Stored Cross-Site Scripting (XSS) in Multiple WSO2 Products via API Document Upload in Publisher

Medium 4.8 Published Updated

Authenticated users can inject malicious scripts via API document uploads, leading to data exfiltration or UI manipulation in WSO2 products.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2025-4760?

CVE-2025-4760 is a medium-severity cross-site scripting vulnerability in Wso2 Api Manager, published on 23 Sep 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

An authenticated stored cross-site scripting (XSS) vulnerability exists in multiple WSO2 products due to improper validation of user-supplied input during API document upload in the Publisher portal. A user with publisher privileges can upload a crafted API document containing malicious JavaScript, which is later rendered in the browser when accessed by other users.

A successful attack could result in redirection to malicious websites, unauthorized UI modifications, or exfiltration of browser-accessible data. However, session-related sensitive cookies are protected by the httpOnly flag, preventing session hijacking.

Weakness: CWE-79

Which versions are affected by CVE-2025-4760?

4 open source packages ship an affected version, including org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.api and org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.rest.api.publisher.v1. It affects 4 products.

PackageAffectedFixed in
org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.api MavenAll versions9.31.117
org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.api MavenAll versions9.31.117
org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.rest.api.publisher.v1 MavenAll versions9.31.117
org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.rest.api.publisher.v1 MavenAll versions9.31.117

Products include Wso2 Api Control Plane, Wso2 Api Manager, Wso2 Traffic Manager, Wso2 Universal Gateway.

How do I fix CVE-2025-4760?

Upgrade org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.api to 9.31.117 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-4760 being exploited?

There is no known exploitation of CVE-2025-4760 in the wild and no public exploit code.

All Wso2 Api Manager vulnerabilities

Sources

Also known as GHSA-cmjc-qp7j-xgwr.

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