CVE-2025-48336CWE-502

WordPress Course Builder < 3.6.6 - PHP Object Injection Vulnerability

Critical · published May 29, 2025

CVSS v3.1
9.8
EPSS
0%
Percentile
39.3
In the wild
Unconfirmed
What it is

🚨 A critical deserialization vulnerability in ThimPress Course Builder could allow attackers to inject malicious objects, like a sneaky spy slipping unauthorized merchandise into your shopping cart! 🔥 Think of it as a restaurant kitchen where someone can sneak in and swap out ingredients without any checks — one wrong move and the whole dish could be spoiled! If exploited, this flaw could allow an attacker to execute arbitrary code on your server. They could gain full control, access sensitive data, or even wreak havoc on your entire course management system. The potential for devastating outcomes is absolutely staggering!

Put simply

Think of it as a restaurant kitchen where someone can sneak in and swap out ingredients without any checks — one wrong move and the whole dish could be spoiled! This vulnerability arises from the insecure deserialization of untrusted data, allowing an attacker to craft specific payloads that the Course Builder processes without proper validation.

What to do

If exploited, this flaw could allow an attacker to execute arbitrary code on your server. They could gain full control, access sensitive data, or even wreak havoc on your entire course management system. The potential for devastating outcomes is absolutely staggering! Update to version 3.6.6 or later immediately to close this vulnerability. Additionally, review all deserialization processes in your application and implement robust validation to mitigate risks. Don't forget to conduct regular security audits! This is fixable, and with these steps, you'll be back on track in no time! 🛡️

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
0.00465 · 39.3th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2025-05-29T18:54Z
EPSS history
Timeline
  • 29 MAY 18:54Z
    WordPress Course Builder < 3.6.6 - PHP Object Injection Vulnerability
    cvelistv5