CISA flags actively exploited WordPress RCE flaw; installing the fix can briefly expose sites

Tier A · Patch today – Before you go home

Who’s exposed: WordPress sites running the unpatched vulnerable version

Tier A because: Core infrastructure or popular tool AND exploited in the wild

Reach

Attack

Damage

Fix

Popular tool · Exploited in the wild · Full takeover

What to do

The Brief

CISA warned federal agencies that attackers have started exploiting a recently patched high-severity WordPress remote code execution flaw in the wild.
The flaw is a remote code execution (RCE) vulnerability in WordPress, which was already patched before exploitation was reported.

Attackers are actively exploiting this WordPress RCE flaw, so WordPress sites that have not applied the patch can be compromised.

Checklist · 4 of 10 yes

Yes	Hits tech teams	WordPress is a widely used CMS that developers and ops teams build with and run.
No	Core infrastructure	A single web framework/CMS, not software nearly every team runs.
Yes	Popular tool	WordPress is a mainstream platform powering a large share of websites.
Yes	Exploited in the wild	BleepingComputer: CISA warned attackers have started exploiting the flaw in the wild.
No	Public exploit	No source says exploit code or a proof-of-concept is published.
No	Remote, no login	No source says the flaw is exploitable without credentials over the network.
Yes	Full takeover	BleepingComputer: the flaw is described as a remote code execution (RCE) vulnerability.
No	Secrets exposed	No source reports credentials, data or configs being stolen or exposed.
No	Supply chain	No source reports compromised packages, updates or build pipelines; it is a normal vulnerability.
No	No fix yet	BleepingComputer: the vulnerability was recently patched, so a fixed version exists.

First seen 2d ago · 2 sources · Full story page · How tiers are decided