CVE-2026-12948 Stored Cross-Site Scripting (XSS)

Medium 4.8 Published Updated

An authenticated administrator can inject scripts into configuration fields, leading to code execution in other users' browsers.

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-2026-12948?

CVE-2026-12948 is a medium-severity cross-site scripting vulnerability in Digi One IA, published on 7 Jul 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 in the web management interface of the Digi PortServer TS, Digi One SP, Digi One SP IA, and Digi One IA allows a remote, authenticated administrator to inject script into certain system configuration fields. The script subsequently executes in the browser of a user who views the affected pages (CWE-79).

Weakness: CWE-79

Which versions are affected by CVE-2026-12948?

How do I fix CVE-2026-12948?

No fix has been published for CVE-2026-12948 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-2026-12948 being exploited?

There is no known exploitation of CVE-2026-12948 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-vr57-6xgh-64rf.

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