CVE-2023-5583 HIGH

CVE-2023-5583: WP Simple Galleries <= 1.34 - Authenticated (Contributor+) PHP Object Injection

Vendor Maca134
Product WP Simple Galleries
Weakness CWE-502 · Unsafe deserialization
Published October 30, 2023
Last update April 8, 2026

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

The WP Simple Galleries plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 1.34 via deserialization of untrusted input from the 'wpsimplegallery_gallery' post meta via 'wpsgallery' shortcode. This allows authenticated attackers, with contributor-level permissions and above, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Key dates

02Disclosure timeline

October 30, 2023 CVE published
April 8, 2026 Record updated