CVE-2023-39939 SQL injection in LuxCal Web Calendar

Critical 9.1 Published 21 Aug 2023 Updated 4 Oct 2024

Remote unauthenticated attackers can execute arbitrary SQL queries to read or modify database information in LuxCal Web Calendar.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-39939?

CVE-2023-39939 is a critical SQL injection vulnerability in LuxSoft LuxCal Web Calendar, published on 21 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

SQL injection vulnerability in LuxCal Web Calendar prior to 5.2.3M (MySQL version) and LuxCal Web Calendar prior to 5.2.3L (SQLite version) allows a remote unauthenticated attacker to execute arbitrary queries against the database and obtain or alter the information in it.

Weakness: CWE-89

Which versions are affected by CVE-2023-39939?

It affects 1 product.

Products include Luxsoft Luxcal Web Calendar.

How do I fix CVE-2023-39939?

No fix has been published for CVE-2023-39939 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-2023-39939 being exploited?

There is no known exploitation of CVE-2023-39939 in the wild and no public exploit code.

Sources

Also known as GHSA-7r2g-65v5-gwjj.