CMP Editors can store script on the coming-soon page
CMP before 4.1.18 does not sanitize and escape a settings value before rendering it on the coming-soon page. When an administrator has granted Editors access to CMP's admin-bar controls, an Editor can store arbitrary script that executes for visitors who view the page.
- 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, review CMP settings for injected content, and assess visitor and administrator sessions that loaded the affected page.
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 sanitise and escape a settings value before outputting it on the coming-soon page, 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 inject arbitrary web scripts that execute when a visitor views the page.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N