CVE-2024-42210 HCL Unica Marketing Operations v12.1.8 and lower is affected by a Stored cross-site scripting (XSS) vulnerability

High 7.6 Published 19 Mar 2026 Updated 23 Mar 2026

Attackers can inject malicious scripts into HCL Unica Marketing Operations, potentially executing code or hijacking user sessions.

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: None listed

What is CVE-2024-42210?

CVE-2024-42210 is a high-severity cross-site scripting vulnerability in HCLSoftware Unica Marketing Operations (Plan), published on 19 Mar 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A Stored cross-site scripting (XSS) vulnerability affects HCL Unica Marketing Operations v12.1.8 and lower. Stored cross-site scripting (also known as second-order or persistent XSS) arises when an application receives data from an untrusted source and includes that data within its later HTTP responses in an unsafe way.

Weakness: CWE-79

Which versions are affected by CVE-2024-42210?

It affects 1 product.

Products include Hcltech Unica.

How do I fix CVE-2024-42210?

No fix has been published for CVE-2024-42210 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-2024-42210 being exploited?

There is no known exploitation of CVE-2024-42210 in the wild and no public exploit code.

Sources

Also known as GHSA-3rg6-p53x-xjw5.