StylemixThemes Masterstudy Plugin up to 4.8.126 on WordPress filename control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in StylemixThemes Masterstudy Plugin up to 4.8.126 on WordPress. Affected by this issue is some unknown functionality. This manipulation causes filename control. This vulnerability appears as CVE-2025-64364. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in StylemixThemes Masterstudy Plugin up to 4.8.126 on WordPress. It has been declared as critical. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a filename control vulnerability. The CWE definition for the vulnerability is CWE-98. The PHP application receives input from an upstream component, but it does not restrict or incorrectly restricts the input before its usage in "require," "include," or similar functions. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in StylemixThemes Masterstudy masterstudy allows PHP Local File Inclusion.This issue affects Masterstudy: from n/a through < 4.8.126.

The weakness was presented by João Pedro S Alcântara. The advisory is shared at vdp.patchstack.com. This vulnerability is known as CVE-2025-64364 since 10/31/2025. The exploitation appears to be easy. The attack can be launched remotely. Neither technical details nor an exploit are publicly available.

Upgrading to version 4.8.126 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-37329). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Filename control
CWE: CWE-98
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Masterstudy Plugin 4.8.126

Timelineinfo

10/31/2025 Advisory disclosed
10/31/2025 +0 days CVE reserved
10/31/2025 +0 days VulDB entry created
01/21/2026 +82 days VulDB entry last update

Sourcesinfo

Advisory: vdp.patchstack.com
Researcher: João Pedro S Alcântara
Status: Confirmed

CVE: CVE-2025-64364 (🔒)
GCVE (CVE): GCVE-0-2025-64364
GCVE (VulDB): GCVE-100-330793
EUVD: 🔒

Entryinfo

Created: 10/31/2025 13:41
Updated: 01/21/2026 03:16
Changes: 10/31/2025 13:41 (56), 10/31/2025 13:50 (1), 01/21/2026 03:16 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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