CVE-2021-27903

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

An issue was discovered in Craft CMS before 3.6.7. In some circumstances, a potential Remote Code Execution vulnerability existed on sites that did not restrict administrative changes (if an attacker were somehow able to hijack an administrator's session).

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-862

Affected software

No affected versions have been published.

Timeline

Published: Jun 30, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-279045.5An issue was discovered in app/Model/SharingGroupServer.php in MISP 2.4.139. In the implementation of Sharing Groups, the "all org" flag som CVE-2021-279059.8The ReplicationHandler (normally registered at "/replication" under a Solr core) in Apache Solr has a "masterUrl" (also "leaderUrl" alias) p CVE-2021-279065.5A carefully crafted PDF file can trigger an OutOfMemory-Exception while loading the file. This issue affects Apache PDFBox version 2.0.22 an CVE-2021-279075.4Apache Superset up to and including 0.38.0 allowed the creation of a Markdown component on a Dashboard page for describing chart's related i CVE-2021-279084.4In all versions prior to Mautic 3.3.2, secret parameters such as database credentials could be exposed publicly by an authorized admin user CVE-2021-279096.1For Mautic versions prior to 3.3.4/4.0.0, there is an XSS vulnerability on Mautic's password reset page where a vulnerable parameter, "bundl CVE-2021-279106.1Insufficient sanitization / filtering allows for arbitrary JavaScript Injection in Mautic using the bounce management callback function. The CVE-2021-279116.1Mautic versions before 3.3.4/4.0.0 are vulnerable to an inline JS XSS attack through the contact's first or last name and triggered when vie CVE-2021-279125.4Mautic versions before 3.3.4/4.0.0 are vulnerable to an inline JS XSS attack when viewing Mautic assets by utilizing inline JS in the title CVE-2021-279133.5The function mt_rand is used to generate session tokens, this function is cryptographically flawed due to its nature being one pseudorandomn CVE-2021-279144.8A cross-site scripting (XSS) vulnerability in the installer component of Mautic before 4.3.0 allows admins to inject executable javascript CVE-2021-279159.0Prior to the patched version, there is an XSS vulnerability in the description fields within the Mautic application which could be exploited