Is CVE-2021-36424 actively exploited?

No active exploitation of CVE-2021-36424 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-36424 be exploited remotely?

Yes. CVE-2021-36424 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-36424?

CVE-2021-36424 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-36424

CRITICAL

CVE-2021-36424

CWE-94Published: February 3, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An issue discovered in phpwcms 1.9.25 allows remote attackers to run arbitrary code via DB user field during installation.

NVD Source

Risk Analysis

Phpwcms 1.9.25 contains a vulnerability that allows remote attackers to execute arbitrary code via the database user field during installation. The critical CVSS score of 9.8 underscores the danger of full system compromise.

No public exploit is known, and it is not in the CISA KEV. The vulnerability is remotely exploitable.

Recommended Action

Upgrade to a newer version of phpwcms and ensure the installation process is secured against unauthorized input.

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-2021-36424 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.