CVE-2026-91798
High
Description
A local privilege escalation vulnerability exists in the update daemon of Foxit PDF Editor/Reader due to an insecure permission configuration that allows the configuration file to be modified by regular users, which may lead to arbitrary script execution with higher privileges.
SeverityHigh
CVSS8.8
Exploit probability—
ProductFoxit Pdf Editor
PublishedSep 23, 2026
First seenSep 23, 2026
Weakness typeCWE-732CWE-732
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| foxit pdf_editor | v ≤ 13.2.6.24111, 14.0.0.33046 ≤ v ≤ 14.0.7.33751, 2023.1.0.15510 ≤ v ≤ 2023.3.0.23028, 2024.1.0.23997 ≤ v ≤ 2024.4.1.27687, 2025.1.0.27937 ≤ v ≤ 2025.3.0.35737, 2026.1.0.36452 ≤ v ≤ 2026.2.0.39747, v ≤ 13.2.6.63484, 14.0.0.68868 ≤ v ≤ 14.0.7.69441, 2023.1.0.55583 ≤ v ≤ 2023.3.0.63083, 2024.1.0.63682 ≤ v ≤ 2024.4.1.66479, 2025.1.0.66692 ≤ v ≤ 2025.3.0.69570, 2026.1.0.70169 ≤ v ≤ 2026.2.0.72029 | — |
| foxit pdf_reader | v ≤ 2026.2.0.39747, v ≤ 2026.2.0.72029 | — |
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