Xxca.ss.iexx.zip -

When a vulnerable service or application extracts this file using traditional methods (e.g., directly taking the filename from the zip entry without sanitization), the application will follow the ../ instructions and write shell.php to the web root rather than the intended extraction folder. 4. Reproduction Steps (Technical) the XXCa.ss.ieXX.zip file.

To prevent this vulnerability, sanitize all filenames during extraction. Ensure that the target extraction path is within the designated destination folder. XXCa.ss.ieXX.zip

Check that filename.contains("..") or use canonical paths to ensure the destination is safe. When a vulnerable service or application extracts this

Maliciously crafted filename within a compressed archive. Affected Components: Unzipping/Extraction utility or code. Impact: RCE, Privilege Escalation, System Compromise. 3. Analysis of XXCa.ss.ieXX.zip System Compromise. 3. Analysis of XXCa.ss.ieXX.zip