MajorCritical vulnerability

CVE-2026-107508 (CVSS 8.6)

NVD · officialPublished Oct 14, 2026Risk 37/100EPSS 0.2%

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.

Technical details

CVSS

8.6

AV:NetworkAC:LowPR:NoneUI:NoneC:HighI:NoneA:None

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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