CVE-2025-47929 DumbDrop vulnerable to DOM XSS via file upload

Low 2.1 Published Updated

An attacker can execute arbitrary scripts in a victim's browser by tricking them into uploading a malicious file to the DumbDrop application.

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-2025-47929?

CVE-2025-47929 is a low-severity cross-site scripting vulnerability in DumbWareio DumbDrop, published on 15 May 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

DumbDrop, a file upload application that provides an interface for dragging and dropping files, has a DOM cross-site scripting vulnerability in the upload functionality prior to commit db27b25372eb9071e63583d8faed2111a2b79f1b. A user could be tricked into uploading a file with a malicious payload. Commit db27b25372eb9071e63583d8faed2111a2b79f1b fixes the vulnerability.

Weakness: CWE-79

Which versions are affected by CVE-2025-47929?

How do I fix CVE-2025-47929?

No fix has been published for CVE-2025-47929 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-2025-47929 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-47929 exists.

Sources

Also known as GHSA-gj32-5mgw-2w27.

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