CVE-2026-91788

Foxit PDF Editor/Reader Missing Authorization Information Disclosure Vulnerability

MEDIUM
5.5
CVSS Score
Published: September 23, 2026 at 07:51 AM UTC
Updated: October 29, 2026 at 05:11 PM UTC
2 products affected across 1 vendorPDF ReaderPDF Editor· also runs on 2 platforms

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

When implementing the JavaScript interface, Foxit PDF Editor/Reader did not perform the attribute authorization checks required by the specification. As a result, a trusted malicious PDF could potentially access sensitive content from other documents within the same process and transmit it externally.

Affected

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

v ≤ 13.2.6.24111v ≤ 13.2.6.6348414.0.0.33046 ≤ v ≤ 14.0.7.3375114.0.0.68868 ≤ v ≤ 14.0.7.694412023.1.0.15510 ≤ v ≤ 2023.3.0.230282023.1.0.55583 ≤ v ≤ 2023.3.0.630832024.1.0.23997 ≤ v ≤ 2024.4.1.276872024.1.0.63682 ≤ v ≤ 2024.4.1.664792025.1.0.27937 ≤ v ≤ 2025.3.0.357372025.1.0.66692 ≤ v ≤ 2025.3.0.695702026.1.0.36452 ≤ v ≤ 2026.2.0.397472026.1.0.70169 ≤ v ≤ 2026.2.0.72029
v ≤ 2026.2.0.39747v ≤ 2026.2.0.72029

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

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

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-668

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