CVE-2026-13416 CMP - Coming Soon & Maintenance < 4.1.18 - Editor+ Stored XSS via niteoCS_socialmedia

Low 3.5 Published Updated

Editors can inject scripts into the coming-soon page if granted admin-bar access, leading to stored XSS for visitors.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-13416?

CVE-2026-13416 is a low-severity cross-site scripting vulnerability in Unknown CMP, published on 27 Aug 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-79

Which versions are affected by CVE-2026-13416?

How do I fix CVE-2026-13416?

No fix has been published for CVE-2026-13416 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-13416 being exploited?

There is no known exploitation of CVE-2026-13416 in the wild and no public exploit code.

Sources

Also known as GHSA-5f7p-rffr-5php.

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