# CVE-2024-5346: Cross-site scripting in Flatsome

> Authenticated attackers can inject arbitrary web scripts via multiple shortcodes in the Flatsome WordPress theme, executing them when users view affected pages.

- **Severity:** Medium 6.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Jun 2024
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-jpx2-8fjv-h582

## What is CVE-2024-5346?

CVE-2024-5346 is a medium-severity cross-site scripting vulnerability in UX-themes Flatsome, published on 22 Jun 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Flatsome theme for WordPress is vulnerable to Stored Cross-Site Scripting via the UX Countdown, Video Button, UX Video, UX Slider, UX Sidebar, and UX Payment Icons shortcodes in all versions up to, and including, 3.18.7 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2024-5346?

It affects 1 product.


Products: Uxthemes Flatsome.

## How do I fix CVE-2024-5346?

No fix has been published for CVE-2024-5346 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-5346 being exploited?

There is no known exploitation of CVE-2024-5346 in the wild and no public exploit code.

## Other vulnerabilities in UX-themes Flatsome

- [CVE-2023-40555](https://insights.sbomify.com/CVE-2023-40555/): WordPress Flatsome Theme <= 3.17.5 is vulnerable to PHP Object Injection (high 8.3)
- [CVE-2023-28994](https://insights.sbomify.com/CVE-2023-28994/): WordPress Flatsome Theme <= 3.16.8 is vulnerable to Cross Site Scripting (XSS) (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-5346 and fix it if it is affected.

What it is: CVE-2024-5346 is a medium-severity cross-site scripting vulnerability in UX-themes Flatsome, published on 22 Jun 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-5346 in the wild and no public exploit code.

Affected product: UX-themes Flatsome. 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-2024-5346/ (Markdown: https://insights.sbomify.com/CVE-2024-5346/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-5346
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-5346
- OSV: https://osv.dev/vulnerability/CVE-2024-5346

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-5346/
Summaries are generated and may contain mistakes; the official description above is the record.