CVE-2026-57623 WordPress W3 Total Cache plugin <= 2.9.4 - Arbitrary Code Execution vulnerability
Unauthenticated attackers can execute arbitrary code on sites using the W3 Total Cache WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-57623?
CVE-2026-57623 is a critical code injection vulnerability in BoldGrid W3 Total Cache, published on 2 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Unauthenticated Arbitrary Code Execution in W3 Total Cache <= 2.9.4 versions.
Weakness: CWE-1284
Which versions are affected by CVE-2026-57623?
How do I fix CVE-2026-57623?
No fix has been published for CVE-2026-57623 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-2026-57623 being exploited?
There is no known exploitation of CVE-2026-57623 in the wild and no public exploit code.
Sources
Also known as GHSA-m2v8-v989-39q2.