CVE-2025-62016 CRITICAL

CVE-2025-62016: WordPress Kallyas theme <= 4.22.0 - Arbitrary File Upload vulnerability

Vendor Hogash
Product KALLYAS
Weakness CWE-434 · Unrestricted file upload
Published November 6, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

9.9/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Unrestricted Upload of File with Dangerous Type vulnerability in hogash KALLYAS kallyas.This issue affects KALLYAS: from n/a through <= 4.22.0.

Explanation of Vulnerability in Simple Terms

02Summary

KALLYAS versions up to 4.22.0 allow authenticated users to upload files without proper validation. An attacker with low-level access can upload malicious files to the server, potentially gaining control over the site. The vulnerability affects confidentiality, integrity, and availability of the entire system.

What an attacker can do

03Attacker Capabilities

Upload malicious files to the server and execute code or compromise the site.

Potential impact on your site

04Site Impact

A compromised user account can lead to full site takeover, data theft, or malware distribution.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site.

Key dates

06Disclosure timeline

November 6, 2025 CVE published
April 28, 2026 Record updated