CVE-2025-59802

HIGH
Published Dec 11, 2025 Modified Dec 18, 2025 CWE-290

Description

Foxit PDF Editor and Reader before 2025.2.1 allow signature spoofing via OCG. When Optional Content Groups (OCG) are supported, the state property of an OCG is runtime-only and not included in the digital signature computation buffer. An attacker can leverage JavaScript or PDF triggers to dynamically change the visibility of OCG content after signing (Post-Sign), allowing the visual content of a signed PDF to be modified without invalidating the signature. This may result in a mismatch between the signed content and what the signer or verifier sees, undermining the trustworthiness of the digital signature. The fixed versions are 2025.2.1, 14.0.1, and 13.2.1.

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CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness Type (CWE)

CWE-290 CWE-290

Affected Products

Vendor Product
foxit pdf_editor
foxit pdf_editor
foxit pdf_editor
foxit pdf_editor
foxit pdf_editor
foxit pdf_editor
foxit pdf_reader
apple macos
foxit pdf_editor
foxit pdf_editor
foxit pdf_editor
foxit pdf_editor
foxit pdf_editor
foxit pdf_editor
foxit pdf_reader
microsoft windows

References

Frequently Asked Questions

What is CVE-2025-59802? +
Foxit PDF Editor and Reader before 2025.2.1 allow signature spoofing via OCG. When Optional Content Groups (OCG) are supported, the state property of an OCG is runtime-only and not included in the digital signature computation buffer. An attacker can leverage JavaScript or PDF triggers to dynamically change the visibility of OCG content after signing (Post-Sign), allowing the visual content of a signed PDF to be modified without invalidating the signature. This may result in a mismatch between the signed content and what the signer or verifier sees, undermining the trustworthiness of the digital signature. The fixed versions are 2025.2.1, 14.0.1, and 13.2.1. It has a CVSS v3.1 base score of 7.5 (HIGH).
How severe is CVE-2025-59802? +
CVE-2025-59802 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-59802? +
CVE-2025-59802 affects products from apple, foxit, microsoft, specifically: macos, pdf_editor, pdf_reader, windows. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-59802? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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