CVE-2021-36431 SQL injection in n/a

Critical 9.1 Published 3 Feb 2023 Updated 26 Mar 2025

Remote attackers can execute arbitrary SQL commands and view sensitive information in jocms via the jo_json_check function.

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-2021-36431?

CVE-2021-36431 is a critical SQL injection vulnerability in n/a, published on 3 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

SQL injection vulnerability in jocms 0.8 allows remote attackers to run arbitrary SQL commands and view sentivie information via jo_json_check() function in jocms/apps/mask/inc/mask.php.

Weakness: CWE-89

Which versions are affected by CVE-2021-36431?

It affects 1 product.

Products include Jocms Project Jocms.

How do I fix CVE-2021-36431?

No fix has been published for CVE-2021-36431 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-2021-36431 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-36431 exists.

Sources

Also known as GHSA-q8vx-hrfr-v7f5.