CVE-2025-64227 WordPress Client Invoicing by Sprout Invoices plugin <= 20.8.7 - PHP Object Injection vulnerability
An attacker can exploit PHP object injection in the Sprout Invoices 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-2025-64227?
CVE-2025-64227 is a critical unsafe deserialization vulnerability in BoldGrid Client Invoicing by Sprout Invoices, published on 18 Dec 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 BoldGrid Client Invoicing by Sprout Invoices sprout-invoices allows Object Injection.This issue affects Client Invoicing by Sprout Invoices: from n/a through <= 20.8.7.
Weakness: CWE-502
Which versions are affected by CVE-2025-64227?
How do I fix CVE-2025-64227?
No fix has been published for CVE-2025-64227 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-2025-64227 being exploited?
There is no known exploitation of CVE-2025-64227 in the wild and no public exploit code.
Sources
Also known as GHSA-rmjr-p44g-h485.