Vulnerability · Published Jun 29, 2026 · Assigned by VulnCheck

CVE-2026-40523FrontAccounting < 2.4.20 SQL Injection via reporting/rep710.php

High 8.1

In plain English

A high-severity SQL injection in FrontAccounting from FrontAccounting. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.5%top 58.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

FrontAccounting before 2.4.20 contains a SQL injection vulnerability in the Audit Trail report handler that allows authenticated attackers with SA_GLANALYTIC permission to execute arbitrary SQL queries by injecting malicious code into the PARAM_2 and PARAM_3 POST parameters. Attackers can exploit time-based blind SQL injection through SLEEP() functions that are amplified across JOIN result sets to cause denial of service by exhausting database connections, or extract arbitrary database content through UNION-based injection techniques.

Affected products (as reported)

Vendor	Product	Versions
FrontAccounting	FrontAccounting	0 – before 2.4.20

Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

References

https://jivasecurity.com/writeups/frontaccounting-sqli-audit-trail-report-cve-2026-40523 technical-description, exploit
https://sourceforge.net/p/frontaccounting/news/2026/04/release-2420/ release-notes
https://github.com/FrontAccountingERP/FA/commit/647a18196caad27f96ea852e993c9e30f815357f patch
https://www.vulncheck.com/advisories/frontaccounting-sql-injection-via-reporting-rep710-php third-party-advisory