CVE-2019-19733 : Security Advisory and Response
Learn about CVE-2019-19733, a cross-site scripting vulnerability in MFScripts YetiShare versions 3.5.2 through 4.5.3. Find out the impact, affected systems, exploitation method, and mitigation steps.
This CVE involves a vulnerability in MFScripts YetiShare versions 3.5.2 through 4.5.3 that allows for cross-site scripting attacks.
Understanding CVE-2019-19733
This CVE pertains to a lack of proper sanitization or encoding in a specific file within the affected versions of YetiShare, enabling attackers to execute malicious scripts.
What is CVE-2019-19733?
The vulnerability in the file _get_all_file_server_paths.ajax.php in MFScripts YetiShare versions 3.5.2 through 4.5.3 allows attackers to input HTML or execute scripts on the affected site, leading to cross-site scripting (XSS) attacks.
The Impact of CVE-2019-19733
The exploitation of this vulnerability can result in unauthorized execution of scripts on the affected website, potentially compromising user data and site integrity.
Technical Details of CVE-2019-19733
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The file _get_all_file_server_paths.ajax.php in MFScripts YetiShare versions 3.5.2 through 4.5.3 lacks proper sanitization or encoding of the output from the fileIds parameter, enabling XSS attacks.
Affected Systems and Versions
- MFScripts YetiShare versions 3.5.2 through 4.5.3
Exploitation Mechanism
Attackers can exploit the vulnerability by injecting HTML or malicious scripts via the fileIds parameter, allowing them to execute unauthorized actions on the affected site.
Mitigation and Prevention
Protecting systems from CVE-2019-19733 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update YetiShare to a patched version that addresses the XSS vulnerability.
- Implement input validation and output encoding to prevent malicious script execution.
Long-Term Security Practices
- Regularly monitor and audit web applications for security vulnerabilities.
- Educate developers on secure coding practices to prevent similar issues in the future.
Patching and Updates
- Apply security patches provided by MFScripts promptly to mitigate the XSS vulnerability and enhance overall system security.