CVE-2024-31245 in ConvertKit Plugin
Summary
by MITRE • 04/10/2024
Insertion of Sensitive Information into Log File vulnerability in ConvertKit.This issue affects ConvertKit: from n/a through 2.4.5.
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Analysis
by VulDB Data Team • 04/10/2024
The vulnerability CVE-2024-31245 represents a critical insertion of sensitive information into log file issue within the ConvertKit platform, a popular email marketing and automation tool used by businesses and content creators worldwide. This vulnerability specifically impacts versions of ConvertKit from the initial release through version 2.4.5, indicating a prolonged exposure window where systems could have been compromised. The flaw falls under the category of improper logging or monitoring practices that can lead to information disclosure, making it particularly dangerous for organizations that rely on ConvertKit for their marketing automation and customer communication processes.
The technical nature of this vulnerability stems from the application's failure to properly sanitize or filter sensitive data before writing it to log files. When ConvertKit processes user inputs, API requests, or system interactions, it appears to directly include potentially sensitive information such as authentication tokens, personal identification data, or other confidential details within its logging mechanisms. This creates a scenario where unauthorized personnel with access to system logs could extract valuable information that could be used for further attacks or malicious activities. The vulnerability is categorized as CWE-532, which specifically addresses the insertion of sensitive information into log files, and aligns with ATT&CK technique T1562.006 for "Taint Data" and T1562.001 for "Impair Command History Logging" when considering the broader attack surface.
The operational impact of this vulnerability extends beyond simple information disclosure, as it fundamentally compromises the security posture of organizations using ConvertKit. Attackers who gain access to system logs could potentially extract user credentials, API keys, or other confidential data that would enable them to impersonate users, access restricted systems, or perform unauthorized transactions. This is particularly concerning for businesses that store sensitive customer information or use ConvertKit for high-value marketing campaigns where the exposure of personal data could result in regulatory violations, financial penalties, and reputational damage. The vulnerability also affects the integrity of audit trails, as legitimate system operations may be contaminated with sensitive data, making it difficult to distinguish between normal operations and potential security incidents.
Organizations utilizing ConvertKit should immediately implement mitigations including updating to the latest available version that addresses this vulnerability, implementing log file access controls to restrict who can view system logs, and conducting thorough log reviews to identify any potential exposure of sensitive information. Additionally, organizations should consider implementing log monitoring solutions that can automatically detect and alert on the presence of sensitive data patterns within logs, as well as establishing more robust input validation and sanitization processes within the application. The remediation process should also include comprehensive security testing of logging mechanisms and regular audits of log file contents to ensure that sensitive information is properly handled and that appropriate access controls are maintained. This vulnerability highlights the critical importance of proper information handling practices in security logging and demonstrates how seemingly minor oversights in data sanitization can create significant security risks for organizations relying on third-party services.