CVE-2026-4002 MEDIUM

CVE-2026-4002: Petje.af <= 2.1.8 - Cross-Site Request Forgery to Account Deletion via 'petjeaf_disconnect' AJAX Action

Vendor Petjeaf
Product Petje.af
Weakness CWE-352 · CSRF
Published April 15, 2026
Last update April 15, 2026

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The Petje.af plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 2.1.8. This is due to missing nonce validation in the ajax_revoke_token() function which handles the 'petjeaf_disconnect' AJAX action. The function performs destructive operations including revoking OAuth2 tokens, deleting user meta, and deleting WordPress user accounts (for users with the 'petjeaf_member' role) without verifying the request originated from a legitimate source. This makes it possible for unauthenticated attackers to force authenticated users to delete their Petje.af member user accounts via a forged request granted the victim clicks on a link or visits a malicious site.

Explanation of Vulnerability in Simple Terms

02Summary

Petje.af versions 2.1.8 and earlier are vulnerable to cross-site request forgery (CSRF) attacks. An attacker can craft a malicious webpage that, when visited by a logged-in user, performs unwanted actions on their behalf. The vulnerability requires user interaction—the victim must visit the attacker's page while authenticated to Petje.af. This can lead to unauthorized modifications of site data or settings.

What an attacker can do

03Attacker Capabilities

Perform unwanted actions on a user's Petje.af account by tricking them into visiting a malicious webpage.

Potential impact on your site

04Site Impact

Users' accounts and site data can be modified without their knowledge if they visit untrusted links while logged in.

Conditions required to exploit

05Prerequisites

User must be logged into Petje.af and visit an attacker-controlled webpage while authenticated.

Key dates

06Disclosure timeline

April 15, 2026 CVE published
April 15, 2026 Record updated