CVE-2026-107508

Ultimate Multisite < 2.17.2 - Unauthenticated LFI via 'attributes' Parameter

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.

Affected

Ultimate Multisite

CVSS v3.1 CNA

8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

EPSS

0.50% chance of exploitation in the next 30 days, 42nd percentile

Published

2026-10-14

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/2b2808d3-b3fc-41d4-8be5-82d222911bc6/

References

• CVE Record
• NVD entry