CVE-2025-36066 Multiple vulnerabilities were addressed in IBM Sterling Connect:Express for UNIX.

Medium 6.1 Published 20 Jan 2026 Updated 20 Jan 2026

An unauthenticated attacker can inject JavaScript into the Web UI, potentially stealing credentials from trusted sessions in IBM Sterling Connect:Express.

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-2025-36066?

CVE-2025-36066 is a medium-severity cross-site scripting vulnerability in IBM Sterling Connect:Express Adapter for Sterling B2B Integrator 5.2.0, published on 20 Jan 2026. 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

IBM Sterling Connect:Express Adapter for Sterling B2B Integrator 5.2.0 5.2.0.00 through 5.2.0.12 is vulnerable to cross-site scripting. This vulnerability allows an unauthenticated attacker to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

Weakness: CWE-79

Which versions are affected by CVE-2025-36066?

It affects 1 product.

Products include Ibm Sterling Connect\.

How do I fix CVE-2025-36066?

No fix has been published for CVE-2025-36066 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-2025-36066 being exploited?

There is no known exploitation of CVE-2025-36066 in the wild and no public exploit code.

Sources

Also known as GHSA-78jx-f7qw-qwcp.