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Critical severity · published May 29, 2025
CVE-2025-48336
WordPress Course Builder < 3.6.6 - PHP Object Injection Vulnerability
9.8
CVSS
0.5%
EPSS
No
On KEV
Description
Deserialization of Untrusted Data vulnerability in ThimPress Course Builder course-builder allows Object Injection.This issue affects Course Builder: from n/a through < 3.6.6.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CB
Course Builder · ThimPress
through 3.6.6 · source: vendor
Affected product
CB
Course Builder
ThimPress
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-48336
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-48336
patchstack.com
https://patchstack.com/database/Wordpress/Theme/course-builder/vulnerability/wordpress-course-builder-3-6-6-php-object-injection-vulnerability?_s_id=cve