CVE Catalog

CVE-2026-107508

HighCVSS 8.6
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.20%

10th percentile - higher than 10% of all known CVEs

Summary

The Ultimate Multisite WordPress plugin before version 2.17.2 does not validate a user-supplied value used to select a file to include, allowing unauthenticated attackers to include and read arbitrary local files, including the WordPress configuration file.

Risk Assessment

An attacker can read arbitrary local files, including the WordPress configuration file containing database credentials, potentially leading to full site compromise.

Recommendation

Update the Ultimate Multisite plugin to version 2.17.2 or later, which includes the fix validating the file selection value.

Related vulnerabilities

Original NVD description (English source)

The Ultimate Multisite WordPress plugin before 2.17.2 does not validate a user-supplied value used to select a file to include, allowing unauthenticated attackers to include and read arbitrary local files, including the WordPress configuration file.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS