CVE-2026-66656
Deferred Deferred - Pending Action

Unauthenticated Local File Inclusion in Foton Core

Publication date: 2026-08-13

Last updated on: 2026-08-13

Assigner: Patchstack

Description
Unauthenticated Local File Inclusion in Foton Core <= 1.1.1 versions.

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Meta Information

Published
2026-08-13
Last Modified
2026-08-13
Generated
2026-09-02
AI Q&A
2026-08-13
EPSS Evaluated
2026-09-01
NVD
CVE-2026-66656
EUVD
EUVD-2026-57895

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
foton_core foton_core to 1.1.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-98 The PHP application receives input from an upstream component, but it does not restrict or incorrectly restricts the input before its usage in "require," "include," or similar functions.

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Executive Summary

CVE-2026-66656 is an unauthenticated Local File Inclusion (LFI) vulnerability affecting Foton Core plugin versions 1.1.1 or lower. It allows attackers to include local files on the target website without authentication, potentially exposing sensitive data like database credentials.

Detection Guidance

Check if the Foton Core plugin version is 1.1.1 or lower. Look for unusual file inclusion attempts in server logs or web application firewall alerts. No specific commands are provided in the resources.

Impact Analysis

This vulnerability can lead to exposure of sensitive data such as database credentials. Depending on server configuration, it may result in a complete database takeover. Attackers can exploit it remotely without prior access.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive files, including database credentials or other confidential data, depending on server configuration. Such exposure may violate compliance requirements under GDPR (data protection) or HIPAA (healthcare data), as unauthorized access to personal or protected health information could occur.

Mitigation Strategies

Disable or remove the Foton Core plugin immediately. Apply Patchstack's temporary mitigation rule if available. Contact your hosting provider or web developer for further assistance as no official patch exists yet.

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