What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-29 · updated 2026-10-24
• Weakness: CWE-89

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.

Affected products

• FrontAccounting: before 2.4.20 — fixed in 2.4.20

How to fix

Upgrade to a fixed version: FrontAccounting 2.4.20. Check the vendor advisory for mitigations.

References

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

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