CVE-2025-39354CWE-502

WordPress Grand Conference theme <= 5.3 - PHP Object Injection vulnerability

Critical · published May 19, 2025

CVSS v3.1
9.8
EPSS
0%
Percentile
40.8
In the wild
Unconfirmed
What it is

🚨 A single object injection is all it takes to exploit this vulnerability in ThemeGoods Grand Conference — it's like giving someone the blueprint to your house without a second thought! 🔥 Think of it like a restaurant that accepts any order without checking if the ingredients are safe. An attacker can slip in unwanted items, leading to a disastrous meal — or in this case, catastrophic consequences for your data! An attacker could potentially manipulate the application to execute arbitrary code, gain unauthorized access, or even take control of sensitive data. This scenario can lead to an absolute disaster, ruining not just the meal but the entire kitchen!

Put simply

Think of it like a restaurant that accepts any order without checking if the ingredients are safe. An attacker can slip in unwanted items, leading to a disastrous meal — or in this case, catastrophic consequences for your data! This vulnerability stems from a deserialization flaw that allows untrusted data to be injected into objects within the Grand Conference application, which can lead to remote code execution. Affected versions range from n/a up to 5.3.

What to do

An attacker could potentially manipulate the application to execute arbitrary code, gain unauthorized access, or even take control of sensitive data. This scenario can lead to an absolute disaster, ruining not just the meal but the entire kitchen! To safeguard your application, update to the latest version of Grand Conference immediately, and implement strict validation on any data being deserialized. Ensuring that only trusted data is accepted will help prevent this malicious injection. You've got this! Follow these steps and turn this potential disaster into a security win! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00485 · 40.8th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2025-05-19T19:48Z
EPSS history
Timeline
  • 19 MAY 19:48Z
    WordPress Grand Conference theme <= 5.3 - PHP Object Injection vulnerability
    cvelistv5