Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-107508
Unknown Ultimate Multisite — Ultimate Multisite < 2.17.2 - Unauthenticated LFI via 'attributes' Parameter
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N C H N N 8.6 .0050 41.7 —
AFFECTED
Product Versions Fixed
Ultimate Multisite unspecified —
TIMELINE
Oct 8 Reserved by WPScan
Oct 14 EXPLOIT PUBLISHED — CVE-2026-107508 (Unknown Ultimate Multisite). Public exploit reference added.
Oct 14 Published (CNA: WPScan)
Description
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| October 8, 2026 | Reserved | Reserved by WPScan |
| October 14, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-107508 (Unknown Ultimate Multisite). Public exploit reference added. |
| October 14, 2026 | Published | Published (CNA: WPScan) |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Unknown | Ultimate Multisite | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-107508 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
