CVE-2024-5962 Cross-site scripting in WSO2 API Manager

Medium 6.1 Published 22 May 2025 Updated 22 May 2025

Attackers can inject JavaScript into WSO2 authentication endpoints to manipulate UI or exfiltrate data, though session cookies remain protected.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2024-5962?

CVE-2024-5962 is a medium-severity cross-site scripting vulnerability in Wso2 Api Manager, published on 22 May 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A reflected cross-site scripting (XSS) vulnerability exists in the authentication endpoint of multiple WSO2 products due to missing output encoding of user-supplied input. A malicious actor can exploit this vulnerability to inject arbitrary JavaScript into the authentication flow, potentially leading to UI modifications, redirections to malicious websites, or data exfiltration from the browser.

While this issue could allow an attacker to manipulate the user’s browser, session-related sensitive cookies remain protected with the httpOnly flag, preventing session hijacking.

Weakness: CWE-79

Which versions are affected by CVE-2024-5962?

It affects 2 products.

Products include Wso2 Api Manager, Wso2 Identity Server.

How do I fix CVE-2024-5962?

No fix has been published for CVE-2024-5962 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-2024-5962 being exploited?

There is no known exploitation of CVE-2024-5962 in the wild and no public exploit code.

All Wso2 Api Manager vulnerabilities

Sources

Also known as GHSA-mv2f-363v-qmfc.