CVE-2025-49393 WordPress Sign-up Sheets Plugin <= 2.3.2 - PHP Object Injection Vulnerability
An attacker can exploit PHP object injection in the Sign-up Sheets 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-2025-49393?
CVE-2025-49393 is a critical unsafe deserialization vulnerability in Fetch Designs Sign-up Sheets, published on 6 Nov 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 Fetch Designs Sign-up Sheets sign-up-sheets allows Object Injection.This issue affects Sign-up Sheets: from n/a through <= 2.3.2.
Weakness: CWE-502
Which versions are affected by CVE-2025-49393?
How do I fix CVE-2025-49393?
No fix has been published for CVE-2025-49393 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-2025-49393 being exploited?
There is no known exploitation of CVE-2025-49393 in the wild and no public exploit code.
Sources
Also known as GHSA-68wf-63x8-j6c7.