Advisory Details

This vulnerability allows remote attackers to bypass the Mark-of-the-Web protection mechanism on affected installations of WinZip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the handling of archive files. When opening an archive that bears the Mark-of-the-Web, WinZip removes the Mark-of-the-Web from the archive file. Following extraction, the extracted files also lack the Mark-of-the-Web. An attacker can leverage this vulnerability to execute arbitrary code in the context of the current user.

This vulnerability has been patched for the subscription and perpetual license versions listed below.

* Subscription: 76.8 and later versions
* Perpetual license versions:
* 29.0 and later versions
* 28.0.16371 and later versions
* 27.0.16370 and later versions

• 2024-05-03 - Vulnerability reported to vendor
• 2024-09-17 - Coordinated public release of advisory
• 2025-03-28 - Advisory Updated