CVE-2018-17128 : Security Advisory and Response
Discover the impact of CVE-2018-17128, a Persistent XSS vulnerability in MyBB Visual Editor before 1.8.19. Learn about affected systems, exploitation, and mitigation steps.
MyBB version prior to 1.8.19 had a Persistent XSS vulnerability in the Visual Editor identified through the use of a Video MyCode.
Understanding CVE-2018-17128
What is CVE-2018-17128?
A Persistent XSS issue was found in the Visual Editor of MyBB before version 1.8.19 via a Video MyCode.
The Impact of CVE-2018-17128
This vulnerability could allow attackers to execute malicious scripts in the context of a user's browser, potentially leading to unauthorized actions.
Technical Details of CVE-2018-17128
Vulnerability Description
The Visual Editor in MyBB versions prior to 1.8.19 was susceptible to Persistent XSS attacks.
Affected Systems and Versions
- Product: MyBB
- Vendor: MyBB
- Versions affected: All versions before 1.8.19
Exploitation Mechanism
The vulnerability could be exploited by injecting malicious scripts through the Video MyCode feature in the Visual Editor.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade MyBB to version 1.8.19 or later to mitigate the vulnerability.
- Avoid using untrusted MyCode features in the Visual Editor.
Long-Term Security Practices
- Regularly update and patch MyBB installations to address security issues promptly.
- Educate users on safe practices to prevent XSS attacks.
- Implement content security policies to mitigate XSS risks.
Patching and Updates
Ensure timely installation of security patches and updates provided by MyBB to address known vulnerabilities.