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HIGH · 7.8

CVE-2026-91797

Foxit PDF Editor/Reader failed to validate the directory traversal path in the attachment file name, resulting in malicious attachments being able to be written to directories outside the expected sec...

Vulnerability Description

Foxit PDF Editor/Reader failed to validate the directory traversal path in the attachment file name, resulting in malicious attachments being able to be written to directories outside the expected secure area when the PDF is opened.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
FoxitPdf Editor<= 13.2.5.63482
FoxitPdf Reader<= 2026.2.0.39747
MicrosoftWindows-

Related Weaknesses (CWE)

CWE-73

References

FAQ

What is CVE-2026-91797?

CVE-2026-91797 is a vulnerability with a CVSS score of 7.8 (HIGH). Foxit PDF Editor/Reader failed to validate the directory traversal path in the attachment file name, resulting in malicious attachments being able to be written to directories outside the expected sec...

How severe is CVE-2026-91797?

CVE-2026-91797 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-91797?

Check the references section above for vendor advisories and patch information. Affected products include: Foxit Pdf Editor, Foxit Pdf Reader, Microsoft Windows.