CVE-2019-18345 : What You Need to Know

DAViCal, starting from version 1.1.8, has a reflected XSS vulnerability that can allow attackers to access user data and perform actions on behalf of users.

Understanding CVE-2019-18345

DAViCal version 1.1.8 is susceptible to a reflected XSS vulnerability that can be exploited by attackers to gain unauthorized access and control over the application.

What is CVE-2019-18345?

A reflected XSS vulnerability in DAViCal versions starting from 1.1.8 allows attackers to manipulate the action parameter, potentially leading to unauthorized data access and malicious actions.

The Impact of CVE-2019-18345

Attackers can view all data accessible to a targeted user and perform actions on their behalf.
In the case of an administrator user, attackers can add new admin users, gaining complete control over the application.

Technical Details of CVE-2019-18345

DAViCal version 1.1.8 is affected by a reflected XSS vulnerability that can have severe consequences if exploited.

Vulnerability Description

The vulnerability arises from the improper encoding of the action parameter, enabling attackers to craft malicious links to exploit user interactions.

Affected Systems and Versions

Product: DAViCal
Vendor: N/A
Versions: Starting from 1.1.8

Exploitation Mechanism

Attackers can create specially crafted links that, when clicked by users, execute unauthorized actions within the application, potentially compromising sensitive data.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2019-18345.

Immediate Steps to Take

Update DAViCal to a patched version that addresses the reflected XSS vulnerability.
Educate users about the risks of clicking on unknown or suspicious links.
Monitor system logs for any unusual activities that may indicate exploitation attempts.

Long-Term Security Practices

Implement secure coding practices to prevent XSS vulnerabilities in web applications.
Regularly conduct security assessments and penetration testing to identify and address potential vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by DAViCal to address known vulnerabilities.