CVE-2025-0248 HCL iNotes is susceptible to a Reflected Cross-site Scripting (XSS) vulnerability,

High 8.1 Published Updated

Remote attackers can execute scripts in victims' browsers via crafted URLs, potentially stealing authentication cookies from HCL iNotes users.

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-2025-0248?

CVE-2025-0248 is a high-severity cross-site scripting vulnerability in HCL Software iNotes, published on 25 Nov 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

HCL iNotes is susceptible to a Reflected Cross-site Scripting (XSS) vulnerability caused by improper validation of user-supplied input. A remote, unauthenticated attacker can specially craft a URL to execute script in a victim's Web browser within the security context of the hosting Web site and/or steal the victim's cookie-based authentication credentials.

Weakness: CWE-79, CWE-20

Which versions are affected by CVE-2025-0248?

How do I fix CVE-2025-0248?

No fix has been published for CVE-2025-0248 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-2025-0248 being exploited?

There is no known exploitation of CVE-2025-0248 in the wild and no public exploit code.

Sources

Also known as GHSA-5xjf-8xm7-6xx9.

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