Is CVE-2021-20720 actively exploited?

No active exploitation of CVE-2021-20720 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-20720 be exploited remotely?

Yes. CVE-2021-20720 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-20720?

CVE-2021-20720 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-20720

CRITICAL

CVE-2021-20720

CWE-89Published: May 20, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

SQL injection vulnerability in the KonaWiki2 versions prior to 2.2.4 allows remote attackers to execute arbitrary SQL commands and to obtain/alter the information stored in the database via unspecified vectors.

NVD Source

Technical Analysis

CVE-2021-20720 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-89): SQL injection vulnerabilities allow attackers to manipulate database queries, potentially exposing or modifying sensitive data.