CVE-2023-33196 Explained : Impact and Mitigation
Discover how CVE-2023-33196, a Craft CMS stored Cross Site Scripting (XSS) vulnerability affecting versions <= 4.4.6, was addressed in version 4.4.7 with a CVSS base score of 5.5.
Craft CMS stored XSS in review volume
Understanding CVE-2023-33196
Craft CMS, a content management system for developing customized digital experiences, was found to have a stored Cross Site Scripting (XSS) vulnerability related to review volumes.
What is CVE-2023-33196?
CVE-2023-33196 is a vulnerability in Craft CMS that allows attackers to inject malicious scripts via review volumes, potentially leading to unauthorized access or data theft.
The Impact of CVE-2023-33196
This vulnerability, with a CVSS base score of 5.5 (Medium severity), could result in low confidentiality, integrity, and availability impacts. Attackers with low privileges can exploit this issue, requiring user interaction.
Technical Details of CVE-2023-33196
Craft CMS version 4.4.7 addressed this vulnerability, preventing further exploitation and securing affected systems.
Vulnerability Description
Craft CMS's susceptible versions, ranging from >= 4.0.0-RC1 to <= 4.4.6, were vulnerable to stored XSS through review volumes, enabling malicious script injections.
Affected Systems and Versions
Craft CMS versions between 4.0.0-RC1 and 4.4.6 were affected by this stored XSS vulnerability, exposing systems to potential exploitation.
Exploitation Mechanism
Attackers could exploit this vulnerability by injecting malicious scripts into review volumes, which, when accessed, could execute unauthorized actions or compromise user data.
Mitigation and Prevention
Craft CMS users should take immediate and long-term security measures to protect their systems from potential exploitation.
Immediate Steps to Take
Update Craft CMS to version 4.4.7 or higher to patch the vulnerability and prevent further exploitation. Review and sanitize user-generated content to mitigate the risk of XSS attacks.
Long-Term Security Practices
Regularly update CMS software and plugins, implement content security policies, and educate users on safe browsing practices to enhance security posture.
Patching and Updates
Refer to Craft CMS's security advisories and releases, such as GHSA-cjmm-x9x9-m2w5, for patch information and stay informed about security best practices.