CVE-2018-18673 : Security Advisory and Response
Learn about CVE-2018-18673, a Cross-Site Scripting (XSS) vulnerability in GNUBOARD5 version 5.3.1.9. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
GNUBOARD5 version 5.3.1.9 has a Cross-Site Scripting (XSS) vulnerability that allows remote attackers to inject arbitrary web scripts or HTML through the "Menu Link" parameter.
Understanding CVE-2018-18673
This CVE entry describes a specific security vulnerability in GNUBOARD5 version 5.3.1.9.
What is CVE-2018-18673?
The vulnerability in GNUBOARD5 version 5.3.1.9 enables malicious actors to insert unauthorized web scripts or HTML by exploiting the "Menu Link" parameter.
The Impact of CVE-2018-18673
The XSS vulnerability in GNUBOARD5 version 5.3.1.9 can result in remote attackers executing malicious scripts on the target system, potentially leading to various security risks such as data theft, unauthorized access, and website defacement.
Technical Details of CVE-2018-18673
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The vulnerability in GNUBOARD5 version 5.3.1.9 allows for the injection of arbitrary web scripts or HTML via the "Menu Link" parameter, specifically in the adm/menu_list_update.php me_link parameter.
Affected Systems and Versions
- Product: GNUBOARD5
- Vendor: n/a
- Version: 5.3.1.9
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating the "Menu Link" parameter to inject malicious scripts or HTML code, potentially compromising the security of the system.
Mitigation and Prevention
Protecting systems from CVE-2018-18673 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update GNUBOARD5 to version 5.3.2.0 or later to mitigate the XSS vulnerability.
- Regularly monitor and sanitize user inputs to prevent XSS attacks.
Long-Term Security Practices
- Implement input validation and output encoding to prevent XSS vulnerabilities.
- Conduct regular security audits and penetration testing to identify and address potential security weaknesses.
Patching and Updates
- Stay informed about security updates and patches released by GNUBOARD5.
- Apply patches promptly to ensure that known vulnerabilities are addressed effectively.