CVE-2026-97256 WordPress Page Builder by SiteOrigin plugin <= 2.36.0 - PHP Object Injection vulnerability
An attacker can exploit PHP object injection in the SiteOrigin Page Builder plugin to potentially execute arbitrary code on the WordPress site.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-97256?
CVE-2026-97256 is a high-severity unsafe deserialization vulnerability in Greg – SiteOrigin Page Builder by SiteOrigin, published on 30 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Editor PHP Object Injection in Page Builder by SiteOrigin <= 2.36.0 versions.
Weakness: CWE-502
Which versions are affected by CVE-2026-97256?
How do I fix CVE-2026-97256?
No fix has been published for CVE-2026-97256 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-97256 being exploited?
There is no known exploitation of CVE-2026-97256 in the wild and no public exploit code.
Sources
Also known as GHSA-6p5w-gc4f-g298.