CVE-2026-11579

Kali Forms <= 2.4.16 - Missing Authorization to Unauthenticated Media File Upload

2026-06-24 00:00

Strategic Overview

Status: Patched in 2.4.17
Affected Plugin: Kali Forms — Contact Form & Drag-and-Drop Builder
Affected Version: <= 2.4.16
CVSS: 5.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2026-11579

View all Kali Forms — Contact Form & Drag-and-Drop Builder vulnerabilities

At a glance

CVE-2026-11579 is a medium-severity Missing Authorization vulnerability in the Kali Forms WordPress plugin, affecting versions <= 2.4.16. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2.4.17; sites on affected versions should update now. Disclosed June 2026, reported by Alexander Jurkschat.

Vulnerability Overview

The Kali Forms — Contact Form & Drag-and-Drop Builder plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 2.4.16. This makes it possible for unauthenticated attackers to upload media files.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in Kali Forms <= 2.4.16 takes no account at all. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Kali Forms the fix is 2.4.17: builds <= 2.4.16 are affected, anything from 2.4.17 onward is not.

Remediation

Update to version 2.4.17, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: Kali Forms 2.4.17 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-11579 https://www.wordfence.com/threat-intel/vulnerabilities/id/3d9b3ca6-1f75-41d1-9d78-fc9e1c92b66a https://nvd.nist.gov/vuln/detail/CVE-2026-11579

Related records

Same weakness class

Other vulnerabilities in Kali Forms — Contact Form & Drag-and-Drop Builder

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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