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MEDIUM severity

CVE-2023-52430 — caddy-security

MEDIUM

CVE-2023-52430 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in github.com/greenpau/caddy-security. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

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

Also known asGHSA-xwmv-cx7p-fqfcGO-2024-2549
Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
None indexed
Exploitation data as of Nov 1, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-52430.

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs31th percentile — riskier than 31% of all scored CVEsHighest risk
0.00%0.56%1.12%1.68%1.2%0.4%May 26Aug 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐹github.com/greenpau/caddy-security

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

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.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/greenpau/caddy-securityall versionsNo fix

Affected Products

1 product · 1 configurations
Application
caddy-securityauthcrunch
1 version
1.1.20

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/greenpau/caddy-security, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    The records we use list no patched version of github.com/greenpau/caddy-security for CVE-2023-52430. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

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.
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CVE-2023-52430: caddy-security XSS (Medium 5.4)