CVE-2020-22669 SQL injection in n/a

What is CVE-2020-22669?

CVE-2020-22669 is a critical SQL injection vulnerability in Debian Debian Linux, published on 2 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Modsecurity owasp-modsecurity-crs 3.2.0 (Paranoia level at PL1) has a SQL injection bypass vulnerability. Attackers can use the comment characters and variable assignments in the SQL syntax to bypass Modsecurity WAF protection and implement SQL injection attacks on Web applications.

Weakness: CWE-89

Which versions are affected by CVE-2020-22669?

It affects 2 products.

Products include Debian Debian Linux, Owasp Owasp Modsecurity Core Rule Set.

How do I fix CVE-2020-22669?

Apply the vendor's patch.

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-2020-22669 being exploited?

There is no known exploitation of CVE-2020-22669 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-22669, GHSA-rj75-2px6-36w6, UBUNTU-CVE-2020-22669.