High severity · published Dec 18, 2025
CVE-2025-64209
WordPress Masterstudy theme < 4.8.122 - Broken Access Control vulnerability
7.5
CVSS
0.3%
EPSS
No
On KEV
Description
Missing Authorization vulnerability in StylemixThemes Masterstudy masterstudy allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects Masterstudy: from n/a through < 4.8.122.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Masterstudy · StylemixThemes
through 4.8.122 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-64209
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-64209
patchstack.com
https://patchstack.com/database/Wordpress/Theme/masterstudy/vulnerability/wordpress-masterstudy-theme-4-8-122-broken-access-control-vulnerability?_s_id=cve
More from Masterstudy
7.5
CVE-2025-64364
WordPress Masterstudy theme < 4.8.126 - Local File Inclusion vulnerability