Is CVE-2020-21120 actively exploited?

No active exploitation of CVE-2020-21120 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-21120 be exploited remotely?

Yes. CVE-2020-21120 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-21120?

CVE-2020-21120 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2020-21120

CRITICAL

CVE-2020-21120

CWE-89Published: February 15, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

SQL Injection vulnerability in file home\controls\cart.class.php in UQCMS 2.1.3, allows attackers execute arbitrary commands via the cookie_cart parameter to /index.php/cart/num.

NVD Source

Risk Analysis

UQCMS 2.1.3 is vulnerable to SQL injection via the cookie_cart parameter, allowing remote attackers to execute arbitrary commands. This critical flaw is remotely exploitable and carries a 9.8 CVSS score.

No public exploit is known, and the vulnerability is not in the CISA KEV.

Recommended Action

Update to a secure version of UQCMS or apply patches to the affected cart.class.php file.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2020-21120 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.