# CVE-2025-13159: Flo Forms – Easy Drag & Drop Form Builder <= 1.0.43 - Unauthenticated Stored Cross-Site Scripting via SVG Upload

> Unauthenticated attackers can upload malicious SVG files to execute JavaScript in admin sessions, potentially compromising the site.

- **Severity:** High 7.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L`)
- **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 available:** No
- **Published:** 21 Nov 2025
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-353x-4wxr-qqh7

## What is CVE-2025-13159?

CVE-2025-13159 is a high-severity cross-site scripting vulnerability in flothemesplugins Flo Forms – Easy Drag & Drop Form Builder, published on 21 Nov 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

The Flo Forms – Easy Drag & Drop Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG file uploads in all versions up to, and including, 1.0.43. This is due to the plugin allowing SVG file uploads via an unauthenticated AJAX endpoint (`flo_form_submit`) without proper file content validation. This makes it possible for unauthenticated attackers to upload malicious SVG files containing JavaScript that executes when an administrator views the uploaded file in the WordPress admin interface, leading to potential full site compromise.

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

## Which versions are affected by CVE-2025-13159?


## How do I fix CVE-2025-13159?

No fix has been published for CVE-2025-13159 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-13159 being exploited?

There is no known exploitation of CVE-2025-13159 in the wild and no public exploit code.

Public exploit code:

- Disclosure for CVE-2025-13159 (github_poc): https://github.com/MooseLoveti/Flo-Forms-CVE-Report

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-13159 and fix it if it is affected.

What it is: CVE-2025-13159 is a high-severity cross-site scripting vulnerability in flothemesplugins Flo Forms – Easy Drag & Drop Form Builder, published on 21 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-13159 in the wild and no public exploit code.

Affected product: flothemesplugins Flo Forms – Easy Drag & Drop Form Builder. 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-2025-13159/ (Markdown: https://insights.sbomify.com/CVE-2025-13159/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-13159
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-13159
- OSV: https://osv.dev/vulnerability/CVE-2025-13159

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-13159/
Summaries are generated and may contain mistakes; the official description above is the record.