How severe is CVE-2020-26286?

This vulnerability has a severity rating of HIGH with a CVSS score of 7.5 out of 10.

What type of vulnerability is CVE-2020-26286?

This is classified as CWE-434, which is a common weakness in software security.

CVE-2020-26286 - HIGH Severity | CVSS 7.5

Vulnerability Description

HedgeDoc is a collaborative platform for writing and sharing markdown. In HedgeDoc before version 1.7.1 an unauthenticated attacker can upload arbitrary files to the upload storage backend including HTML, JS and PHP files. The problem is patched in HedgeDoc 1.7.1. You should however verify that your uploaded file storage only contains files that are allowed, as uploaded files might still be served. As workaround it's possible to block the `/uploadimage` endpoint on your instance using your reverse proxy. And/or restrict MIME-types and file names served from your upload file storage.

Related Vulnerabilities

CVE-2015-9338

HIGH

CVSS:7.5(High)

The wp-file-upload plugin before 2.5.0 for WordPress has insufficient restrictions on upload of .php files.

CWE-4342015

CVE-2015-9339

HIGH

CVSS:7.5(High)

The wp-file-upload plugin before 2.7.1 for WordPress has insufficient restrictions on upload of .js files.

CWE-4342015

CVE-2015-9340

HIGH

CVSS:7.5(High)

The wp-file-upload plugin before 3.0.0 for WordPress has insufficient restrictions on upload of php, js, pht, php3, php4, php5, phtml, htm, html, and htaccess files.

CWE-4342015

CVE-2015-9341

HIGH

CVSS:7.5(High)

The wp-file-upload plugin before 3.4.1 for WordPress has insufficient restrictions on upload of .php.js files.

CWE-4342015

CVE-2016-10958

HIGH

CVSS:7.5(High)

The estatik plugin before 2.3.0 for WordPress has unauthenticated arbitrary file upload via es_media_images[] to wp-admin/admin-ajax.php.

CWE-4342016

CVE-2016-7452

HIGH

CVSS:7.5(High)

The Pixidou Image Editor in Exponent CMS prior to v2.3.9 patch 2 could be used to upload a malicious file to any folder on the site via a cpi directory traversal.

CWE-4342016