CVE-2025-39410 Deserialization in Smart Sections Theme Builder - WPBakery Page Builder Addon
An attacker can exploit PHP object injection in the Smart Sections Theme Builder plugin to potentially execute arbitrary code on the WordPress site.
- 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-2025-39410?
CVE-2025-39410 is a critical unsafe deserialization vulnerability in themegusta Smart Sections Theme Builder - WPBakery Page Builder Addon, published on 19 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Deserialization of Untrusted Data vulnerability in themegusta Smart Sections Theme Builder - WPBakery Page Builder Addon.This issue affects Smart Sections Theme Builder - WPBakery Page Builder Addon: from n/a through 1.7.8.
Weakness: CWE-502
Which versions are affected by CVE-2025-39410?
How do I fix CVE-2025-39410?
No fix has been published for CVE-2025-39410 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-2025-39410 being exploited?
There is no known exploitation of CVE-2025-39410 in the wild and no public exploit code.
Sources
Also known as GHSA-9v5x-rh5f-9mfh.