CVE-2026-32095 Plunk has Stored Cross-Site Scripting (XSS) via SVG File Upload

Medium 5.4 Published Updated

Attackers can execute arbitrary JavaScript in victim browsers by uploading malicious SVG files to the Plunk email platform.

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-2026-32095?

CVE-2026-32095 is a medium-severity cross-site scripting vulnerability in useplunk plunk, published on 11 Mar 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

Plunk is an open-source email platform built on top of AWS SES. Prior to 0.7.1, Plunk's image upload endpoint accepted SVG files, which browsers treat as active documents capable of executing embedded JavaScript, creating a stored XSS vulnerability. This vulnerability is fixed in 0.7.1.

Weakness: CWE-79

Which versions are affected by CVE-2026-32095?

It affects 1 product.

Products include Useplunk Plunk.

How do I fix CVE-2026-32095?

No fix has been published for CVE-2026-32095 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-2026-32095 being exploited?

There is no known exploitation of CVE-2026-32095 in the wild and no public exploit code.

Sources

Also known as GHSA-69jg-7493-cx5x.

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