# CVE-2021-47725: STVS ProVision 5.9.10 Authenticated Reflected Cross-Site Scripting via Files Parameter

> Authenticated attackers can inject malicious scripts via the files parameter, potentially compromising user sessions in STVS ProVision.

- **Severity:** Medium 4.8 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 31 Dec 2025
- **Updated:** 28 Jul 2026
- **Also known as:** GHSA-x8v6-6vmg-p732

## What is CVE-2021-47725?

CVE-2021-47725 is a medium-severity cross-site scripting vulnerability in STVS ProVision, published on 31 Dec 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

STVS ProVision 5.9.10 contains a cross-site scripting vulnerability in the 'files' POST parameter that allows authenticated attackers to inject arbitrary HTML code. Attackers can exploit the unvalidated input to execute malicious scripts within a user's browser session in the context of the affected site.

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

## Which versions are affected by CVE-2021-47725?


## How do I fix CVE-2021-47725?

No fix has been published for CVE-2021-47725 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-47725 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47725 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-47725 and fix it if it is affected.

What it is: CVE-2021-47725 is a medium-severity cross-site scripting vulnerability in STVS ProVision, published on 31 Dec 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47725 exists.

Affected product: STVS ProVision. 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-2021-47725/ (Markdown: https://insights.sbomify.com/CVE-2021-47725/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-47725
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-47725
- OSV: https://osv.dev/vulnerability/CVE-2021-47725

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-47725/
Summaries are generated and may contain mistakes; the official description above is the record.