← Back to CVEs

CVE-2026-3535

CRITICAL

9.8

Description

The DSGVO Google Web Fonts GDPR plugin for WordPress is vulnerable to arbitrary file upload due to missing file type validation in the `DSGVOGWPdownloadGoogleFonts()` function in all versions up to, and including, 1.1. The function is exposed via a `wp_ajax_nopriv_` hook, requiring no authentication. It fetches a user-supplied URL as a CSS file, extracts URLs from its content, and downloads those files to a publicly accessible directory without validating the file type. This makes it possible for unauthenticated attackers to upload arbitrary files including PHP webshells, leading to remote code execution. The exploit requires the site to use one of a handful of specific themes (twentyfifteen, twentyseventeen, twentysixteen, storefront, salient, or shapely).

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/8/2026

Last Modified4/8/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-434

References

https://plugins.trac.wordpress.org/browser/dsgvo-google-web-fonts-gdpr/tags/1.1/dsgvo-google-web-fonts-gdpr.php#L159(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/dsgvo-google-web-fonts-gdpr/tags/1.1/dsgvo-google-web-fonts-gdpr.php#L46(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/dsgvo-google-web-fonts-gdpr/trunk/dsgvo-google-web-fonts-gdpr.php#L159(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/dsgvo-google-web-fonts-gdpr/trunk/dsgvo-google-web-fonts-gdpr.php#L46(security@wordfence.com)

https://www.wordfence.com/threat-intel/vulnerabilities/id/6203ffaf-5efd-4c66-85f0-cc3a05a03084?source=cve(security@wordfence.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.