CVE-2026-81766
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.…
Impact
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 arbitrary code in the network-shared Really Simple Security WordPress plugin before 9.8.0 directory, which WordPress otherwise reserves to the network administrator. Exploitation requires the network administrator to have enabled the Really Simple Security WordPress plugin before 9.8.0 administration menu for subsites, which is not the default.
Affected products
| Product | Affected versions |
|---|---|
| Really Simple Security WordPress Plugin | before 9.8.0 |
| Network-Shared Really Simple Security WordPress Plugin | before 9.8.0 |
Versions were read from the advisory text. No structured product data has been published for this record yet.