CVE-2025-49438 HIGH

CVE-2025-49438: WordPress Simple Login Log plugin <= 1.1.3 - PHP Object Injection vulnerability

Vendor Max Chirkov
Product Simple Login Log
Weakness CWE-502 · Unsafe deserialization
Published August 20, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in Max Chirkov Simple Login Log allows Object Injection. This issue affects Simple Login Log: from n/a through 1.1.3.

Explanation of Vulnerability in Simple Terms

02Summary

Simple Login Log versions up to 1.1.3 contain a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary code on the site. The vulnerability requires specific network conditions to exploit but does not require user interaction. An attacker can read sensitive data, modify site content, or disrupt service availability.

What an attacker can do

03Attacker Capabilities

Run their own code on the site, read sensitive data, modify content, or disable the site.

Potential impact on your site

04Site Impact

An unauthenticated attacker can compromise your site, steal data, or take it offline without your knowledge.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required, but exploitation requires specific conditions.

Key dates

06Disclosure timeline

August 20, 2025 CVE published
April 28, 2026 Record updated