Is CVE-2021-46433 actively exploited?

No active exploitation of CVE-2021-46433 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-46433 be exploited remotely?

Yes. CVE-2021-46433 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-46433?

CVE-2021-46433 has a CVSS score of 10.0 (CRITICAL).

HOME VULNERABILITIESCVE-2021-46433

CRITICAL

CVE-2021-46433

NVD-CWE-noinfoPublished: March 28, 2022· Updated: Jun 17, 2026

10.0

CVSS v3.1

Official Description

In fenom 2.12.1 and before, there is a way in fenom/src/Fenom/Template.php function getTemplateCode()to bypass sandbox to execute arbitrary PHP code when disable_native_funcs is true.

NVD Source

Technical Analysis

CVE-2021-46433 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 10.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.