What is CVE-2025-49393?

CVE-2025-49393 is a critical-severity vulnerability in Fetch Designs Sign-Up Sheets, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2025-11-06.

How severe is CVE-2025-49393?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Deserialization in Fetch Designs Sign-Up Sheets

CVE-2025-49393

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.

Vulnerability class: Insecure Deserialization

EPSS: 0.005 (40.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Fetch Designs Sign-up Sheets — versions 0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2025-49393?: CVE-2025-49393 is a critical-severity vulnerability in Fetch Designs Sign-Up Sheets, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2025-11-06.
How severe is CVE-2025-49393?: Critical severity. CVSS v3 base score is 9.8 out of 10.