CVE-2026-4947

Insecure Direct Object Reference (IDOR) Leading to Signature Forgery in Foxit eSign

HIGH
7.1
CVSS Score
Published: April 1, 2026 at 01:40 AM UTC
Updated: June 17, 2026 at 10:57 AM UTC
2 products affected across 2 vendorsEsignEsign

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2026-03-26
v < 2026-03-26
Affected range stops below 2026-03-26, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHFoxit
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-284

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