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EPUB File Reader Directory Traversal Remote Code Execution Vulnerability

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CVE Number CVE-2025-63365
Vendor EPUB File Reader
Credit teatree, JSec

Description

A directory traversal vulnerability exists in EPUB File Reader, caused by insufficient validation of file paths during the extraction of EPUB archives into a temporary directory. User interaction is required to exploit this vulnerability in that the target must open a malicious EPUB file. An attacker can leverage this vulnerability to execute code in the context of the current user.

Timeline

2025-09-27 - Vulnerability reported to Vendor

2025-09-30 - Vendor Patch Release