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Vulnerability record · CVE-2021-3120 · published 22 February 2021

CVE-2021-3120: Yithemes yith woocommerce gift cards unrestricted file upload vulnerability

Yithemes · Yith Woocommerce Gift Cards

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.

9.8 CVSS 3.1 Critical EPSS 37% · top 1.5% CWE-434 · Unrestricted file upload
9.8CVSS 3.1 base score, v2 10.0
37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/guy-liu/yith-giftdrop ExploitThird Party Advisory
https://yithemes.com/themes/plugins/yith-woocommerce-gift-cards/ Vendor Advisory
https://github.com/guy-liu/yith-giftdrop ExploitThird Party Advisory
https://yithemes.com/themes/plugins/yith-woocommerce-gift-cards/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-3120), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.