Critical severity · published May 23, 2025
CVE-2025-39485
WordPress GrandTour theme <= 5.6 - PHP Object Injection vulnerability
9.8
CVSS
0.6%
EPSS
No
On KEV
Description
Deserialization of Untrusted Data vulnerability in ThemeGoods Grand Tour grandtour allows Object Injection.This issue affects Grand Tour: from n/a through <= 5.6.
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)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GT
Grand Tour · ThemeGoods
through 5.6 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-39485
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-39485
Third Party Advisory
https://patchstack.com/database/Wordpress/Theme/grandtour/vulnerability/wordpress-grandtour-theme-5-5-1-php-object-injection-vulnerability?_s_id=cve
More from Grand Tour
7.1
CVE-2025-67952
WordPress Grand Tour theme < 5.6.2 - Cross Site Scripting (XSS) vulnerability
5.4
CVE-2026-66652
WordPress Grand Tour theme <= 5.5.1 - Cross Site Request Forgery (CSRF) vulnerability