Spoofing attack in Foxit PhantomPDF and Foxit Reader for Mac

Published: 2021-02-02
Risk Medium
Patch available YES
Number of vulnerabilities 1
Exploitation vector Network
Public exploit N/A
Vulnerable software
Foxit Reader for Mac
Client/Desktop applications / Office applications

Foxit PDF Editor for Mac (formerly PhantomPDF)
Client/Desktop applications / Office applications

Vendor Foxit Software Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Spoofing attack

EUVDB-ID: #VU50257

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]


CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No


The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data. The application fails to identify the objects in the incremental update when the Subtype entry of the Annotation dictionary is set as null. A remote attacker can forge a PDF file that will appear as legit one and perform a spoofing attack.


Install updates from vendor's website.

Vulnerable software versions

Foxit Reader for Mac: -

Foxit PDF Editor for Mac (formerly PhantomPDF): -

External links


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.