CVE-2023-6452 Cross-site scripting in Web Security

What is CVE-2023-6452?

CVE-2023-6452 is a critical cross-site scripting vulnerability in Forcepoint Web Security, published on 22 Aug 2024. 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

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Forcepoint Web Security (Transaction Viewer) allows Stored XSS.

The Forcepoint Web Security portal allows administrators to generate detailed reports on user requests made through the Web proxy. It has been determined that the "user agent" field in the Transaction Viewer is vulnerable to a persistent Cross-Site Scripting (XSS) vulnerability, which can be exploited by any user who can route traffic through the Forcepoint Web proxy.

This vulnerability enables unauthorized attackers to execute JavaScript within the browser context of a Forcepoint administrator, thereby allowing them to perform actions on the administrator's behalf. Such a breach could lead to unauthorized access or modifications, posing a significant security risk.

This issue affects Web Security: before 8.5.6.

Weakness: CWE-79

Which versions are affected by CVE-2023-6452?

How do I fix CVE-2023-6452?

No fix has been published for CVE-2023-6452 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-2023-6452 being exploited?

There is no known exploitation of CVE-2023-6452 in the wild and no public exploit code.

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-85fc-rr25-p568.