CVE-2025-31631 CRITICAL

CVE-2025-31631: WordPress Fish House theme <= 1.2.7 - PHP Object Injection Vulnerability

Vendor Ancorathemes
Product Fish House
Weakness CWE-502 · Unsafe deserialization
Published May 23, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in AncoraThemes Fish House fish-house allows Object Injection.This issue affects Fish House: from n/a through <= 1.2.7.

Explanation of Vulnerability in Simple Terms

02Summary

Fish House versions 1.2.7 and earlier contain a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary code on affected sites. The vulnerability exists in how the product processes untrusted serialized data without proper validation. An attacker can exploit this remotely without user interaction to gain full control of the site.

What an attacker can do

03Attacker Capabilities

Run their own code on the site, read all data, modify content, and disable the site.

Potential impact on your site

04Site Impact

Complete compromise of the site and all data hosted on it.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

May 23, 2025 CVE published
April 28, 2026 Record updated