What is the CVSS score of CVE-2025-28915?

CVE-2025-28915 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 22.7%.

Which versions of Theme Egg ThemeEgg ToolKit are affected by CVE-2025-28915?

CVE-2025-28915 presents critical security risk, a unrestricted file upload vulnerability rated CVSS 9.1.

How to fix or mitigate CVE-2025-28915?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Review file handling controls and restrict upload directories.

Theme Egg ThemeEgg ToolKit CVE-2025-28915

CRITICAL

Unrestricted Upload of File with Dangerous Type (CWE-434)

2025-03-11 audit@patchstack.com

File Upload

9.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.1 CRITICAL

AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Re-analysis Queued

Apr 23, 2026 - 15:42 vuln.today

cvss_changed

Analysis Generated

Mar 12, 2026 - 19:52 vuln.today

CVE Published

Mar 11, 2025 - 21:15 nvd

CRITICAL 9.1

DescriptionCVE.org

Unrestricted Upload of File with Dangerous Type vulnerability in Theme Egg ThemeEgg ToolKit allows Upload a Web Shell to a Web Server. This issue affects ThemeEgg ToolKit: from n/a through 1.2.9.

AnalysisAI

ThemeEgg ToolKit plugin for WordPress (through 1.2.9) allows authenticated administrators to upload web shells via unrestricted file upload. The scope change makes this critical despite requiring admin privileges, as it enables OS-level code execution beyond the WordPress application.

Technical ContextAI

The plugin does not validate uploaded file types (CWE-434), allowing an authenticated administrator to upload a PHP web shell. While admin access is required, the scope change (S:C) indicates the attacker breaks out of the WordPress application to execute arbitrary OS commands.

Affected ProductsAI

ThemeEgg ToolKit for WordPress through 1.2.9

RemediationAI

Remove or update ThemeEgg ToolKit. Enforce MFA for WordPress admin accounts. Implement file upload validation at the server level. Monitor for new PHP files in upload directories.