# CVE-2025-13861: HTML Forms – Simple WordPress Forms Plugin <= 1.6.0 - Unauthenticated Stored Cross-Site Scripting

> Unauthenticated attackers can inject arbitrary scripts via file upload metadata, executing them in the admin dashboard to potentially compromise administrator accounts.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 17 Dec 2025
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-229f-x533-c4r4

## What is CVE-2025-13861?

CVE-2025-13861 is a medium-severity cross-site scripting vulnerability in linksoftware HTML Forms – Simple WordPress Forms Plugin, published on 17 Dec 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 HTML Forms – Simple WordPress Forms Plugin for WordPress is vulnerable to Unauthenticated Stored Cross-Site Scripting in all versions up to and including 1.6.0 due to insufficient sanitization of fabricated file upload field metadata before displaying it in the WordPress admin dashboard. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute whenever an administrator accesses the form submissions page.

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

## Which versions are affected by CVE-2025-13861?


## How do I fix CVE-2025-13861?

No fix has been published for CVE-2025-13861 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-13861 being exploited?

There is no known exploitation of CVE-2025-13861 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-13861 and fix it if it is affected.

What it is: CVE-2025-13861 is a medium-severity cross-site scripting vulnerability in linksoftware HTML Forms – Simple WordPress Forms Plugin, published on 17 Dec 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-2025-13861 in the wild and no public exploit code.

Affected product: linksoftware HTML Forms – Simple WordPress Forms Plugin. 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-2025-13861/ (Markdown: https://insights.sbomify.com/CVE-2025-13861/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-13861
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-13861
- OSV: https://osv.dev/vulnerability/CVE-2025-13861

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-13861/
Summaries are generated and may contain mistakes; the official description above is the record.