CVE-2023-37534 HCL Leap is affected by a Cross-site scripting (XSS) vulnerability

High 7.1 Published Updated

Attackers can inject malicious scripts via query parameters in HCL Leap due to insufficient URI protocol whitelisting, potentially compromising user sessions.

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-2023-37534?

CVE-2023-37534 is a high-severity cross-site scripting vulnerability in HCL Leap, published on 24 Apr 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

Insufficient URI protocol whitelist in HCL Leap allows script injection through query parameters.

Weakness: CWE-79

Which versions are affected by CVE-2023-37534?

It affects 1 product.

Products include Hcltech Hcl Leap.

How do I fix CVE-2023-37534?

No fix has been published for CVE-2023-37534 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-2023-37534 being exploited?

There is no known exploitation of CVE-2023-37534 in the wild and no public exploit code.

Sources

Also known as GHSA-3xw2-8cp9-9v42.

Is CVE-2023-37534 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free