CVE-2026-59521 WordPress Real Testimonials plugin <= 3.1.15 - PHP Object Injection vulnerability
An attacker can exploit PHP object injection in the Real Testimonials 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-2026-59521?
CVE-2026-59521 is a high-severity unsafe deserialization vulnerability in ShapedPlugin LLC Real Testimonials, published on 13 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Deserialization of Untrusted Data vulnerability in ShapedPlugin LLC Real Testimonials testimonial-free allows Object Injection.This issue affects Real Testimonials: from n/a through <= 3.1.15.
Weakness: CWE-502
Which versions are affected by CVE-2026-59521?
How do I fix CVE-2026-59521?
No fix has been published for CVE-2026-59521 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-2026-59521 being exploited?
There is no known exploitation of CVE-2026-59521 in the wild and no public exploit code.
Sources
Also known as GHSA-hcch-p97q-5wq5.