CVE-2026-28443 in OpenReplay
Summary
by MITRE • 03/05/2026
OpenReplay is a self-hosted session replay suite. Prior to version 1.20.0, the POST /{projectId}/cards/search endpoint has a SQL injection in the sort.field parameter. This issue has been patched in version 1.20.0.
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Analysis
by VulDB Data Team • 03/17/2026
The vulnerability identified as CVE-2026-28443 affects OpenReplay, a self-hosted session replay suite designed for capturing and analyzing user interactions on web applications. This security flaw exists in versions prior to 1.20.0 and represents a critical SQL injection vulnerability within the application's API endpoints. The specific vulnerable endpoint is POST /{projectId}/cards/search which processes search queries for session replay data. The vulnerability manifests when the sort.field parameter is manipulated by an attacker, allowing arbitrary SQL commands to be executed against the underlying database. This type of vulnerability falls under CWE-89 which categorizes SQL injection flaws as a fundamental weakness in application security that enables attackers to manipulate database queries through untrusted input. The impact of this vulnerability extends beyond simple data theft as it provides attackers with the ability to execute arbitrary database commands, potentially leading to complete database compromise.
The technical exploitation of this vulnerability occurs through the manipulation of the sort.field parameter in the POST request to the /{projectId}/cards/search endpoint. When an attacker submits a malicious payload through this parameter, the application fails to properly sanitize or escape the input before incorporating it into SQL query construction. This lack of input validation creates a direct pathway for SQL injection attacks, where attackers can inject malicious SQL code that gets executed by the database server. The vulnerability represents a classic case of insecure parameter handling that violates the principle of least privilege and proper input validation. Attackers could potentially leverage this vulnerability to extract sensitive information from the database, modify or delete records, or even escalate privileges within the database environment. The fact that this vulnerability exists in the search functionality suggests that it could be exploited to gain unauthorized access to user session data, which is particularly concerning given the nature of session replay applications that capture sensitive user interactions.
The operational impact of CVE-2026-28443 is significant for organizations using OpenReplay deployments prior to version 1.20.0, as it creates a potential attack vector for data breaches and system compromise. Given that session replay tools capture user interactions including login credentials, personal information, and other sensitive data, successful exploitation could result in unauthorized access to confidential user information. The vulnerability aligns with attack patterns described in the MITRE ATT&CK framework under the T1190 technique for exploit public-facing application, specifically targeting web application vulnerabilities that allow for database access. Organizations may face regulatory compliance issues if user data is compromised through this vulnerability, particularly in environments subject to data protection regulations such as GDPR or HIPAA. The vulnerability also represents a potential pathway for attackers to establish persistence within the system, as database access often provides attackers with opportunities to create backdoors or maintain long-term access to the affected infrastructure. The fact that this vulnerability affects the search functionality suggests it could be exploited through automated scanning tools, making it a high-priority target for threat actors seeking to exploit web applications at scale.
Organizations utilizing OpenReplay should prioritize immediate upgrade to version 1.20.0 or later to remediate this vulnerability. The patch implemented in version 1.20.0 likely includes proper input sanitization and parameterized query construction to prevent SQL injection attacks. Security teams should conduct thorough vulnerability assessments to ensure all instances of OpenReplay are updated and verify that no unauthorized access has occurred. Additional mitigations include implementing web application firewalls to monitor for suspicious requests targeting the affected endpoint, limiting access to the API through network segmentation, and conducting regular security audits of the application's database interactions. The vulnerability serves as a reminder of the importance of input validation and proper parameter handling in web applications, particularly those dealing with sensitive user data. Organizations should also consider implementing automated security testing processes that can identify similar vulnerabilities in other applications within their infrastructure. The remediation process should include monitoring for any signs of exploitation attempts and ensuring that database access controls are properly configured to minimize the impact of any potential compromise. Security teams should also review their incident response procedures to ensure readiness for potential exploitation of similar vulnerabilities in other systems.