# CVE-2024-9504: Cross-site scripting in Booking calendar, Appointment Booking System

> Unauthenticated attackers can inject arbitrary web scripts via SVG file uploads, leading to stored XSS execution when users view the file.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Nov 2024
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-62g5-fcg3-v3cp

## What is CVE-2024-9504?

CVE-2024-9504 is a high-severity cross-site scripting vulnerability in wpdevart Booking calendar, Appointment Booking System, published on 26 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Booking calendar, Appointment Booking System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 3.2.15 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2024-9504?


## How do I fix CVE-2024-9504?

No fix has been published for CVE-2024-9504 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-9504 being exploited?

There is no known exploitation of CVE-2024-9504 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-9504 and fix it if it is affected.

What it is: CVE-2024-9504 is a high-severity cross-site scripting vulnerability in wpdevart Booking calendar, Appointment Booking System, published on 26 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-9504 in the wild and no public exploit code.

Affected product: wpdevart Booking calendar, Appointment Booking System. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2024-9504/ (Markdown: https://insights.sbomify.com/CVE-2024-9504/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-9504
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-9504
- OSV: https://osv.dev/vulnerability/CVE-2024-9504

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-9504/
Summaries are generated and may contain mistakes; the official description above is the record.