CVE-2026-78381
8.2RansomLook · RansomLook
RansomLook contains a path traversal vulnerability in the handling of the screen field associated with group posts, potentially allowing unauthorized file access.
Executive summary
An authenticated administrator can exploit a path traversal vulnerability in RansomLook to access or manipulate files on the host server.
Vulnerability
The application fails to properly sanitize the screen field in group posts, leading to a path traversal vulnerability (CWE-22). This issue requires an authenticated user with high privileges to execute the attack.
Business impact
Successful exploitation allows an attacker to read arbitrary files from the server, which could expose configuration files, credentials, or other sensitive system data. The CVSS score of 8.2 underscores the high risk to data confidentiality when administrative access is compromised.
Remediation
Immediate Action: Check for and apply the latest security updates provided by the vendor to remediate the path traversal flaw.
Proactive Monitoring: Review web server logs for attempts to access unexpected paths or directory traversal sequences such as dot-dot-slash patterns.
Compensating Controls: Utilize a Web Application Firewall (WAF) to detect and block malicious input containing directory traversal characters in application parameters.
Exploitation status
Public Exploit Available: No
Analyst recommendation
Administrative users must treat this vulnerability with high priority to ensure the continued security of the application data and underlying server files. Apply the vendor-provided patch immediately to mitigate the risk of unauthorized file system access.