CMP Editors can overwrite WordPress options and become Administrators
CMP before 4.1.18 does not enforce an option-name allow-list when importing settings through an AJAX action. When an administrator has granted Editors access to CMP's admin-bar controls, an Editor can overwrite arbitrary WordPress options, including options that permit privilege escalation to Administrator.
- Component
- CMP
- Plugin slug
cmp- Affected
- < 4.1.18
- Safe version
4.1.18- Published
- Aug 27, 2026
This CVE was published Aug 27, 2026 and is one of 5 known issues for this plugin.
Update, patch or deactivate.
Update to 4.1.18 or later and audit WordPress options, administrator accounts, role changes, and CMP imports for unauthorized modification.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The CMP WordPress plugin before 4.1.18 does not enforce an option-name allow-list when importing settings via one of its AJAX actions, allowing users with the Editor role (when the administrator has granted the Editor role access to the CMP WordPress plugin before 4.1.18's admin-bar controls) to update arbitrary WordPress options, including options that lead to privilege escalation to Administrator.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H