CVE-2026-54823 WordPress Widget Options plugin <= 4.2.3 - Remote Code Execution (RCE) vulnerability

Critical 9.9 Published Updated

Contributors can execute arbitrary code in the Widget Options WordPress plugin, allowing attackers to compromise the site.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-54823?

CVE-2026-54823 is a critical code injection vulnerability in MarketingFire Widget Options, published on 25 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Contributor Remote Code Execution (RCE) in Widget Options <= 4.2.3 versions.

Weakness: CWE-94

Which versions are affected by CVE-2026-54823?

How do I fix CVE-2026-54823?

No fix has been published for CVE-2026-54823 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-54823 being exploited?

There is no known exploitation of CVE-2026-54823 in the wild and no public exploit code.

Sources

Also known as GHSA-28rq-6fmf-79j2.

Is CVE-2026-54823 in your software?

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