CVE-2023-52430 caddy-security plugin for Caddy vulnerable to reflected Cross-site Scripting

Medium 5.4 Published 12 Feb 2024 Updated 6 May 2025

Reflected XSS in the caddy-security plugin allows attackers to execute arbitrary scripts in victim browsers via crafted GET requests.

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-2023-52430?

CVE-2023-52430 is a medium-severity cross-site scripting vulnerability in n/a, published on 12 Feb 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The caddy-security plugin 1.1.20 for Caddy allows reflected XSS via a GET request to a URL that contains an XSS payload and begins with either a /admin or /settings/mfa/delete/ substring.

Weakness: CWE-79

Which versions are affected by CVE-2023-52430?

3 open source packages ship an affected version, including github.com/greenpau/caddy-security. It affects 1 product.

Package	Affected	Fixed in
`github.com/greenpau/caddy-security` Go	All versions	None
`github.com/greenpau/caddy-security` Go	All versions to `1.1.20`	None
`github.com/greenpau/caddy-security` Go	All versions to `1.1.20`	None

Products include Authcrunch Caddy-Security.

How do I fix CVE-2023-52430?

No fix has been published for CVE-2023-52430 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-2023-52430 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-52430 exists.

Sources

Also known as GHSA-xwmv-cx7p-fqfc, GO-2024-2549.