WordPress Really Simple Security plugin < 9.8.0 - Multisite Subsite Admin+ Arbitrary Plugin Installation vulnerability

Multisite Subsite Admin+ Arbitrary Plugin Installation vulnerability discovered by Charles Vosburgh in WordPress Plugin Really Simple SSL versions 9.8.0...

EUVD-2026-68160

The Really Simple Security WordPress plugin before 9.8.0 does not check that the user is allowed to install Really Simple Security WordPress plugin before 9.8.0 before installing one from a user-supplied URL, allowing an administrator of a subsite on a multisite network to install and execute...