Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-54001— WordPress Classter theme <= 2.5 - PHP Object Injection vulnerability

Quick assessment

Affected
ThemeREX Classter
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Classter 2.5及之前版本存在安全漏洞，该漏洞源于反序列化不可信数据，可能导致对象注入。

CVSS 9.8 · Critical EPSS 0.53% · P43

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
ThemeREX Classter ≤ 2.5 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-54001

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
WordPress Classter theme <= 2.5 - PHP Object Injection vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Deserialization of Untrusted Data vulnerability in ThemeREX Classter classter allows Object Injection.This issue affects Classter: from n/a through <= 2.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Classter 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Classter 2.5及之前版本存在安全漏洞，该漏洞源于反序列化不可信数据，可能导致对象注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Shenlong Deep Dive — AI Deep Analysis

10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.

Read summary Full analysis (login)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ThemeREX Classter 0 ~ 2.5 -

II. Public POCs for CVE-2025-54001

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-54001

请登录查看更多情报信息。

Vendor Advisories for CVE-2025-54001 (1)

Same Patch Batch · ThemeREX · 2026-03-05 · 98 CVEs total

CVE-2026-22453 9.8 CRITICAL WordPress Pets Club theme <= 2.3 - PHP Object Injection vulnerability
CVE-2026-22474 9.8 CRITICAL WordPress Equestrian Centre theme <= 1.5 - PHP Object Injection vulnerability
CVE-2026-27438 9.8 CRITICAL WordPress Kingler theme <= 1.7 - PHP Object Injection vulnerability
CVE-2026-28074 9.8 CRITICAL WordPress Pizza House theme <= 1.4.0 - PHP Object Injection vulnerability
CVE-2026-22454 9.8 CRITICAL WordPress Solaris theme <= 2.5 - PHP Object Injection vulnerability
CVE-2026-27437 9.8 CRITICAL WordPress Tennis Club theme <= 1.2.3 - PHP Object Injection vulnerability
CVE-2026-28105 9.8 CRITICAL WordPress Good Energy theme <= 1.7.7 - PHP Object Injection vulnerability
CVE-2026-28043 9.8 CRITICAL WordPress Healer - Doctor, Clinic & Medical WordPress Theme theme <= 1.0.0 - Local File In
CVE-2026-27439 9.8 CRITICAL WordPress Dentario theme <= 1.5 - PHP Object Injection vulnerability
CVE-2026-28059 8.1 HIGH WordPress Dermatology Clinic theme <= 1.4.3 - Local File Inclusion vulnerability
CVE-2026-28054 8.1 HIGH WordPress Legal Stone theme <= 1.2.11 - Local File Inclusion vulnerability
CVE-2026-28053 8.1 HIGH WordPress Miller theme <= 1.3.3 - Local File Inclusion vulnerability
CVE-2026-28018 8.1 HIGH WordPress Global Logistics theme <= 3.20 - Local File Inclusion vulnerability
CVE-2026-28066 8.1 HIGH WordPress Legrand theme <= 2.17 - Local File Inclusion vulnerability
CVE-2026-28030 8.1 HIGH WordPress Bonbon theme <= 1.6 - Local File Inclusion vulnerability
CVE-2026-28025 8.1 HIGH WordPress Stargaze theme <= 1.5 - Local File Inclusion vulnerability
CVE-2026-28087 8.1 HIGH WordPress Filmax theme <= 1.1.11 - Local File Inclusion vulnerability
CVE-2026-28067 8.1 HIGH WordPress Bassein theme <= 1.0.15 - Local File Inclusion vulnerability
CVE-2026-28014 8.1 HIGH WordPress Translogic theme <= 1.2.11 - Local File Inclusion vulnerability
CVE-2026-28085 8.1 HIGH WordPress Mahogany theme <= 2.9 - Local File Inclusion vulnerability

Showing top 20 of 98 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same vendor: ThemeREX
Same weakness: CWE-502

V. Comments for CVE-2025-54001

No comments yet

Leave a comment