CVE-2026-18622

Foxit PDF Editor/Reader's signature-validation pop-up reports modified certified documents as valid

State: Published
Severity: 4.7 Medium
Published: Aug 13, 2026
Updated: Aug 13, 2026
Reserved: Aug 3, 2026

Description

Foxit PDF Editor/Reader inconsistently alerts users when signature fields are abnormally modified, including alterations to appearance, coordinates, or field duplication. This may mislead users into trusting tampered documents, since the UI cannot accurately reflect the actual integrity status of signatures.

Scores

CVSS	Score	Vector	Source
3.1	4.7 Medium	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N	Foxit

Weaknesses

CWE-451 User Interface (UI) Misrepresentation of Critical Information

Affected Products

Product	Versions
Foxit PDF EditorFoxit Software Inc.	Versions 2026.1.2 and earlierAffected Versions 14.0.5 and earlierAffected Versions 13.2.5 and earlierAffected
Foxit PDF ReaderFoxit Software Inc.	Versions 2026.1.2 and earlierAffected

References

https://www.foxit.com/support/security-bulletins.html

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