CVE-2020-21726 SQL injection in n/a

Critical 9.8 Published 7 Oct 2021 Updated 4 Aug 2024

Attackers can exploit a blind SQL injection in OpenSNS to read sensitive database information via the cid parameter.

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-2020-21726?

CVE-2020-21726 is a critical SQL injection vulnerability in n/a, published on 7 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

OpenSNS v6.1.0 contains a blind SQL injection vulnerability in /Controller/ChinaCityController.class.php via the cid parameter.

Weakness: CWE-89

Which versions are affected by CVE-2020-21726?

It affects 1 product.

Products include Opensns Opensns.

How do I fix CVE-2020-21726?

No fix has been published for CVE-2020-21726 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-2020-21726 being exploited?

There is no known exploitation of CVE-2020-21726 in the wild and no public exploit code.

Sources

Also known as GHSA-48gx-cwj6-6p4c.