CVE-2026-40523 FrontAccounting < 2.4.20 SQL Injection via reporting/rep710.php
Authenticated attackers with specific permissions can execute arbitrary SQL queries to extract data or cause denial of service in FrontAccounting.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-40523?
CVE-2026-40523 is a high-severity SQL injection vulnerability in FrontAccounting, published on 29 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-89
Which versions are affected by CVE-2026-40523?
How do I fix CVE-2026-40523?
No fix has been published for CVE-2026-40523 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-40523 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40523 exists.
Sources
Also known as GHSA-8ccm-j5hq-9jhr.