What is CVE-2025-8871?

CVE-2025-8871 is a medium-severity vulnerability in Wpeverest Everest Forms Pro, classified under Deserialization of Untrusted Data. CVSS score: 5.6/10. Published 2025-11-05.

How severe is CVE-2025-8871?

Medium severity. CVSS v3 base score is 5.6 out of 10.

Deserialization in Wpeverest Everest Forms Pro

CVE-2025-8871

The Everest Forms (Pro) plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.9.7 via deserialization of untrusted input in the mime_content_type() function. This makes it possible for unauthent…

Vulnerability class: Insecure Deserialization

EPSS: 0.004 (58.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Wpeverest Everest Forms Pro — versions 0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

www.wordfence.com/threat-intel/vulnerabilities/id/11d45287-f875-4cc9-aaf6-47158…
everestforms.net/changelog/

Frequently asked questions

What is CVE-2025-8871?: CVE-2025-8871 is a medium-severity vulnerability in Wpeverest Everest Forms Pro, classified under Deserialization of Untrusted Data. CVSS score: 5.6/10. Published 2025-11-05.
How severe is CVE-2025-8871?: Medium severity. CVSS v3 base score is 5.6 out of 10.