CVE-2021-45843 : Security Advisory and Response
Learn about CVE-2021-45843 affecting glFusion CMS v1.7.9, allowing attackers to execute malicious scripts via the title request parameter. Find mitigation steps and best security practices.
glFusion CMS v1.7.9 is affected by a reflected Cross Site Scripting (XSS) vulnerability where the title request parameter is inserted into an HTML tag attribute without proper sanitization, potentially allowing malicious scripts to be executed.
Understanding CVE-2021-45843
This CVE entry describes a specific vulnerability in glFusion CMS v1.7.9 related to reflected XSS.
What is CVE-2021-45843?
The vulnerability in glFusion CMS v1.7.9 allows an attacker to inject malicious scripts into the application's response by manipulating the title request parameter.
The Impact of CVE-2021-45843
The XSS vulnerability can be exploited to execute arbitrary script code in a user's browser, leading to potential data theft, account hijacking, or website defacement.
Technical Details of CVE-2021-45843
This section delves into the specifics of the vulnerability.
Vulnerability Description
The XSS flaw stems from the title request parameter being directly included in an HTML attribute without validation, enabling attackers to craft malicious payloads.
Affected Systems and Versions
- Affected system: glFusion CMS v1.7.9
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting specially crafted script payloads into the title request parameter, which are then echoed back in the application's response.
Mitigation and Prevention
Protecting systems from the CVE-2021-45843 vulnerability is crucial for maintaining security.
Immediate Steps to Take
- Apply security patches or updates provided by the software vendor.
- Implement input validation mechanisms to sanitize user input and prevent script injection.
Long-Term Security Practices
- Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
- Educate developers and users on best practices for secure coding and browsing habits.
Patching and Updates
- Monitor official sources for security advisories and apply patches promptly to mitigate known vulnerabilities.