CVE-2025-52725 CRITICAL

CVE-2025-52725: WordPress CouponXxL theme <= 3.0.0 - PHP Object Injection Vulnerability

Vendor Pebas
Product CouponXxL
Weakness CWE-502 · Unsafe deserialization
Published June 27, 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 pebas CouponXxL couponxxl allows Object Injection.This issue affects CouponXxL: from n/a through <= 3.0.0.

Explanation of Vulnerability in Simple Terms

02Summary

CouponXxL versions 3.0.0 and earlier contain a deserialization vulnerability that allows unauthenticated attackers to run arbitrary code on the site without user interaction. The vulnerability exists in how the product processes untrusted serialized data. An attacker can exploit this remotely over the network to gain full control of the affected installation.

What an attacker can do

03Attacker Capabilities

Run arbitrary code on the site and take complete control of it.

Potential impact on your site

04Site Impact

Complete compromise of the site, including data theft, malware injection, and site defacement.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

June 27, 2025 CVE published
April 28, 2026 Record updated