The LuxCal Web Calendar has been identified with multiple vulnerabilities
The LuxCal Web Calendar has been identified with multiple vulnerabilities that could significantly compromise the security of systems using it. These vulnerabilities were disclosed on February 17, 2025, and affect versions prior to 5.3.3M for MySQL and 5.3.3L for SQLite.
: This vulnerability involves a missing authentication in
dloader.php, allowing unauthorized access to arbitrary files on the server. If exploited, an attacker can potentially obtain sensitive information from the server without proper authentication.: This is a path traversal vulnerability also located in
dloader.php. Similar to CVE-2025-25224, it enables attackers to access arbitrary files on the server, which could lead to data breaches.: An SQL injection vulnerability found in
retrieve.php. This flaw allows attackers to execute arbitrary SQL queries, which could lead to unauthorized data manipulation, including deletion or alteration of database records.: Another SQL injection vulnerability, this time in
pdf.php. Exploiting this vulnerability can result in similar consequences as CVE-2025-25222, allowing attackers to read, delete, or modify database information.
The vulnerabilities pose a high risk to users of LuxCal Web Calendar:
: Unauthorized access to sensitive files and database records can lead to significant data breaches.
: Attackers could alter or delete critical information within databases, compromising the integrity of stored data.
: Successful exploitation may provide attackers with further control over the affected application and its underlying infrastructure.
To mitigate these vulnerabilities, it is strongly recommended that users of LuxCal Web Calendar:
Upgrade to the latest versions (5.3.3M for MySQL and 5.3.3L for SQLite) as soon as possible.
Regularly monitor security advisories related to LuxCal and apply patches promptly.
Consider a scenario where a small business uses LuxCal Web Calendar for managing events and appointments. If an attacker exploits CVE-2025-25224 by accessing dloader.php, they could download sensitive files containing customer data or internal documents without any authentication checks in place. This breach could lead to reputational damage and legal implications due to the exposure of personal information.
In another case, exploiting CVE-2025-25222 could allow an attacker to manipulate event data by executing malicious SQL commands through retrieve.php, disrupting the business's operations and trustworthiness.
Conclusion
The identified vulnerabilities in LuxCal Web Calendar highlight the importance of maintaining updated software and implementing robust security measures. Users should take immediate action to protect their systems from potential exploitation by upgrading their installations and staying informed about security updates.