CVE-2021-3120

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 36.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-02-22 · updated 2026-06-17
Weakness: CWE-434

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.

Affected products

YITH WooCommerce Gift Cards: before 3.3.1 — fixed in 3.3.1

How to fix

Upgrade to a fixed version: YITH WooCommerce Gift Cards 3.3.1. Check the vendor advisory for mitigations.

References

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