CVE-2025-59802: foxit pdf_editor Authentication Bypass by Spoofing

Vulnerability summary

CVE-2025-59802 is a high (CVSS 7.5) Authentication Bypass by Spoofing vulnerability in foxit pdf_editor. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23% of scored vulnerabilities.

Timeline

1. 11-12-2025
   PublishedVulnerability first disclosed.
2. 11-12-2025
   Last modifiedVulnerability information updated.

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.

• CWE-290Authentication Bypass by SpoofingThis attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.