CVE-2025-10853 Reflected Cross-Site Scripting (XSS) in Management Console of Multiple WSO2 Products Due to Improper Output Encoding

Medium 5.2 Published Updated

Attackers can inject JavaScript into WSO2 management consoles via reflected XSS, enabling UI manipulation and data theft, though session hijacking is mitigated.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-10853?

CVE-2025-10853 is a medium-severity cross-site scripting vulnerability in Wso2 Api Manager, published on 5 Nov 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A reflected cross-site scripting (XSS) vulnerability exists in the management console of multiple WSO2 products due to improper output encoding. By tampering with specific parameters, a malicious actor can inject arbitrary JavaScript into the response, leading to reflected XSS.

Successful exploitation could result in UI manipulation, redirection to malicious websites, or data theft from the browser. However, session-related sensitive cookies are protected with the httpOnly flag, which mitigates the risk of session hijacking.

Weakness: CWE-79

Which versions are affected by CVE-2025-10853?

It affects 9 products.

Products include Wso2 Api Control Plane, Wso2 Api Manager, Wso2 Enterprise Integrator, Wso2 Identity Server, Wso2 Identity Server as Key Manager, Wso2 Open Banking Am and 3 more.

How do I fix CVE-2025-10853?

No fix has been published for CVE-2025-10853 yet. Limit exposure of the affected software until one is available.

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-2025-10853 being exploited?

There is no known exploitation of CVE-2025-10853 in the wild and no public exploit code.

All Wso2 Api Manager vulnerabilities

Sources

Also known as GHSA-4x6x-rggp-ff9q.

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