CVE-2026-96833 WordPress Ultimate Addons for Contact Form 7 plugin <= 3.5.51 - PHP Object Injection vulnerability
An editor can exploit PHP object injection in the Ultimate Addons for Contact Form 7 plugin to potentially execute arbitrary code.
- 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-2026-96833?
CVE-2026-96833 is a high-severity unsafe deserialization vulnerability in Themefic Ultimate Addons for Contact Form 7, 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 Ultimate Addons for Contact Form 7 <= 3.5.51 versions.
Weakness: CWE-502
Which versions are affected by CVE-2026-96833?
How do I fix CVE-2026-96833?
No fix has been published for CVE-2026-96833 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-2026-96833 being exploited?
There is no known exploitation of CVE-2026-96833 in the wild and no public exploit code.
Sources
Also known as GHSA-w53v-75gj-cm6q.