CVE-2026-93460 Cross-site scripting in baserCMS

Medium 5.1 Published Updated

Attackers can execute arbitrary scripts in users' browsers via stored XSS in baserCMS email form fields.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-93460?

CVE-2026-93460 is a medium-severity cross-site scripting vulnerability in baserCMS, published on 30 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A stored cross-site scripting vulnerability via appended strings in email form fields exists in baserCMS. If this vulnerability is exploited, an arbitrary script may be executed in the user's web browser.

Weakness: CWE-79

Which versions are affected by CVE-2026-93460?

How do I fix CVE-2026-93460?

No fix has been published for CVE-2026-93460 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-2026-93460 being exploited?

There is no known exploitation of CVE-2026-93460 in the wild and no public exploit code.

Sources

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