CVE-2024-12374 Stored XSS in automatic1111/stable-diffusion-webui

Medium 6.1 Published 20 Mar 2025 Updated 20 Mar 2025

Attackers can inject malicious JavaScript via uploaded HTML files, leading to arbitrary code execution in victims' browsers.

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-2024-12374?

CVE-2024-12374 is a medium-severity cross-site scripting vulnerability in automatic1111/stable-diffusion-webui, published on 20 Mar 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

A stored cross-site scripting (XSS) vulnerability exists in automatic1111/stable-diffusion-webui version git 82a973c. An attacker can upload an HTML file, which the application interprets as content-type application/html. If a victim accesses the malicious link, it will execute arbitrary JavaScript in the victim's browser.

Weakness: CWE-79

Which versions are affected by CVE-2024-12374?

It affects 1 product.

Products include Automatic1111 Stable-Diffusion-Webui.

How do I fix CVE-2024-12374?

No fix has been published for CVE-2024-12374 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-2024-12374 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-12374 exists.

Sources

Also known as GHSA-f3v2-jc5f-6328.