Is CVE-2021-3120 actively exploited?

No active exploitation of CVE-2021-3120 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-3120 be exploited remotely?

Yes. CVE-2021-3120 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-3120?

CVE-2021-3120 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2021-3120

CWE-434Published: February 22, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An arbitrary file upload vulnerability in the YITH WooCommerce Gift Cards Premium plugin before 3.3.1 for WordPress allows remote attackers to achieve remote code execution on the operating system in the security context of the web server. In order to exploit this vulnerability, an attacker must be able to place a valid Gift Card product into the shopping cart. An uploaded file is placed at a predetermined path on the web server with a user-specified filename and extension. This occurs because the ywgc-upload-picture parameter can have a .php value even though the intention was to only allow uploads of Gift Card images.

NVD Source

Technical Analysis

CVE-2021-3120 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.