CVE-2020-13459 : Exploit Details and Defense Strategies
Discover the impact of CVE-2020-13459, a stored XSS vulnerability in the Image Resizer plugin for Craft CMS. Learn about affected versions and mitigation steps.
An issue was discovered in the Image Resizer plugin before 2.0.9 for Craft CMS, leading to stored XSS in the Bulk Resize action.
Understanding CVE-2020-13459
This CVE involves a vulnerability in the Image Resizer plugin for Craft CMS that allows for stored cross-site scripting (XSS) attacks.
What is CVE-2020-13459?
CVE-2020-13459 is a security flaw found in versions prior to 2.0.9 of the Image Resizer plugin for Craft CMS, enabling malicious actors to execute XSS attacks through the Bulk Resize feature.
The Impact of CVE-2020-13459
The presence of stored XSS in the Bulk Resize action can lead to unauthorized access, data theft, and potential compromise of user information on affected systems.
Technical Details of CVE-2020-13459
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The vulnerability in the Image Resizer plugin allows attackers to inject malicious scripts into the Bulk Resize action, posing a significant risk to system security.
Affected Systems and Versions
- Product: Image Resizer plugin
- Vendor: N/A
- Versions affected: All versions before 2.0.9
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting and submitting malicious code through the Bulk Resize functionality, which is then executed within the context of the affected application.
Mitigation and Prevention
Protecting systems from CVE-2020-13459 requires immediate action and long-term security measures.
Immediate Steps to Take
- Update the Image Resizer plugin to version 2.0.9 or newer to mitigate the vulnerability.
- Implement input validation and output encoding to prevent XSS attacks.
Long-Term Security Practices
- Regularly monitor and audit plugins and extensions for security vulnerabilities.
- Educate users and developers on secure coding practices to prevent XSS and other common attacks.
Patching and Updates
- Stay informed about security updates and patches released by the plugin vendor to address known vulnerabilities.