CVE-2025-25221 is a critical vulnerability affecting Luxsoft's LuxCal Web Calendar versions prior to 5.3.3M (MySQL) and 5.3.3L (SQLite). This vulnerability allows SQL injection through the pdf.php script, which can lead to unauthorized access, alteration, or deletion of database information. With a CVSS score of 9.8, this vulnerability presents a significant threat to organizations that utilize this calendar software.
The nature of this vulnerability highlights the urgency for organizations to address potential exploitation. Given the critical severity level, organizations should prioritize patching immediately to mitigate risks associated with this vulnerability.
If exploited, attackers may leverage this SQL injection vulnerability to manipulate or exfiltrate sensitive data, which could severely impact organizational operations and data integrity. Hence, understanding the implications of this vulnerability is essential for maintaining a strong security posture.
Organizations are advised to review their current versions of the LuxCal Web Calendar and apply necessary updates to ensure they are running the latest secure versions. Failure to do so may expose them to significant risks.
Vulnerability Details
The LuxCal Web Calendar prior to 5.3.3M (MySQL version) and prior to 5.3.3L (SQLite version) contains an SQL injection vulnerability in pdf.php. If this vulnerability is exploited, information in a database may be deleted, altered, or retrieved.
The CVSS score of this vulnerability is 9.8, indicating a critical severity level. The vulnerability was published on February 18, 2025, and is classified under CWE-89, which pertains to SQL injection issues.
Affected products include the LuxCal Web Calendar, and organizations using versions prior to the mentioned patches should take immediate action.
Technical Analysis
The root cause of this vulnerability arises from improper handling of user input in pdf.php, allowing attackers to execute arbitrary SQL commands. This vulnerability can be exploited over the network, requiring no privileges or user interaction, which significantly lowers the complexity of an attack.
The attack vector is categorized as network-based, and the complexity is low. Attackers do not need any special privileges or user interaction to exploit this vulnerability. The potential impacts are severe, affecting confidentiality, integrity, and availability.
Risk & Impact Analysis
Risk to organizations includes unauthorized access to sensitive information stored in the calendar database, potential data loss, and the possibility of data integrity compromise. The blast radius of this vulnerability can be extensive, especially for organizations that rely on the LuxCal Web Calendar for crucial scheduling and data management functions.
Given the CVSS score of 9.8, organizations should treat this vulnerability as critical and prioritize it within their patch management cycles to mitigate the risks associated with exploitation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The versions of LuxCal Web Calendar affected by this vulnerability include all versions prior to 5.3.3M for MySQL and 5.3.3L for SQLite.
Mitigation & Remediation
Organizations should apply the latest patches for LuxCal Web Calendar as soon as possible. The versions available are 5.3.3M for MySQL and 5.3.3L for SQLite, which address this vulnerability.
For those unable to update immediately, implementing web application firewalls to filter malicious SQL queries may provide a temporary mitigation strategy. Additionally, regular monitoring of database logs for unusual activity can help in early detection of potential exploitation attempts.
Organizations may also consider engaging in continuous security testing to regularly assess their defenses against such vulnerabilities.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor for unusual patterns in database queries, especially those involving pdf.php. Logging and analyzing SQL queries can help identify attempts to exploit this vulnerability.
Behavioral anomalies in user access patterns and sudden changes in data integrity should also be flagged for investigation.
AppSecure Threat Intelligence Insight
The emergence of CVE-2025-25221 underscores the critical need for organizations to maintain up-to-date software and implement robust security measures. SQL injection remains a prevalent threat, and the ability of attackers to exploit such vulnerabilities can lead to significant organizational damage.
Lessons learned from this vulnerability indicate that proactive security assessments, including regular penetration testing and vulnerability management programs, are essential for identifying and mitigating risks before they can be exploited.
Organizations should develop comprehensive incident response plans that include strategies for addressing SQL injection vulnerabilities, ensuring they are prepared for potential exploitation attempts.
For further information on how to strengthen application security, organizations can refer to resources such as the application security assessment services offered by AppSecure.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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