CVE-2025-39495CWE-502

WordPress Avantage Theme <= 2.4.9 - PHP Object Injection vulnerability

Critical · published May 23, 2025

CVSS v3.1
9.8
EPSS
1%
Percentile
48.9
In the wild
Unconfirmed
What it is

🔥 A sneaky deserialization vulnerability in BoldThemes Avantage could let attackers inject rogue objects! This flaw affects versions up to 2.4.9, and the consequences could be catastrophic! ⚠️ Think of this vulnerability like a restaurant that accepts takeout orders without asking for the customer's name. If someone orders a meal and slips in a hidden ingredient, the kitchen might unknowingly prepare something harmful instead of the usual fare. An attacker could exploit this vulnerability to execute arbitrary code on the server, potentially gaining full control over the application. This could lead to data breaches, unauthorized access, and devastating effects on the system's integrity. It's a recipe for disaster!

Put simply

Think of this vulnerability like a restaurant that accepts takeout orders without asking for the customer's name. If someone orders a meal and slips in a hidden ingredient, the kitchen might unknowingly prepare something harmful instead of the usual fare. This deserialization of untrusted data vulnerability allows attackers to manipulate object data, leading to object injection. It occurs when the application trusts data that it has not verified, opening the door for malicious payloads.

What to do

An attacker could exploit this vulnerability to execute arbitrary code on the server, potentially gaining full control over the application. This could lead to data breaches, unauthorized access, and devastating effects on the system's integrity. It's a recipe for disaster! Immediately upgrade BoldThemes Avantage to version 2.4.10 or later to mitigate this vulnerability. Additionally, implement strict input validation and sanitize any data being deserialized to further secure your application. Regularly audit your systems to catch similar vulnerabilities in the future! You've got this! By taking these steps, you'll bolster your defenses and keep your application safe! 🛡️

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
0.00616 · 48.9th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2025-05-23T12:43Z
EPSS history
Timeline
  • 23 MAY 12:43Z
    WordPress Avantage Theme <= 2.4.9 - PHP Object Injection vulnerability
    cvelistv5