Vulnerability · Published Apr 1, 2026 · Assigned by Foxit

CVE-2026-4947Insecure Direct Object Reference (IDOR) Leading to Signature Forgery in Foxit eSign

High 7.1

In plain English

A high-severity improper access control in na1.foxitesign.foxit.com from Foxit Software Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.2%top 92.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Addressed a potential insecure direct object reference (IDOR) vulnerability in the signing invitation acceptance process. Under certain conditions, this issue could have allowed an attacker to access or modify unauthorized resources by manipulating user-supplied object identifiers, potentially leading to forged signatures and compromising the integrity and authenticity of documents undergoing the signing process. The issue was caused by insufficient authorization validation on referenced resources during request processing.

Affected products (as reported)

Vendor	Product	Versions
Foxit Software Inc.	na1.foxitesign.foxit.com	before 2026-03-26

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

References

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