CVE-2025-4796: Privilege Escalation Vulnerability in Eventin WordPress Plugin

Overview

The CVE-2025-4796 is a severe vulnerability identified within the Eventin Plugin for WordPress that affects all versions up to, and including, 4.0.34. This vulnerability is a privilege escalation issue that can lead to account takeover, thereby compromising the security of the WordPress website. As WordPress is one of the most popular content management systems globally, this vulnerability could potentially impact millions of websites, causing a significant breach of data and posing risks to the security of private and corporate information.

Vulnerability Summary

CVE ID: CVE-2025-4796
Severity: High (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: User (Contributor-level and above)
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Eventin WordPress Plugin | <= 4.0.34 How the Exploit Works

The exploit takes advantage of a flaw in the ‘Eventin\Speaker\Api\SpeakerController::update_item’ function. The function does not validate a user’s identity or capability adequately before updating their details, like their email. This flaw allows an unauthenticated attacker with contributor-level and above permissions to change arbitrary user email addresses, including administrators. Once the attacker has changed the email address, they can then reset the user’s password. This password reset enables the attacker to gain access to the user’s account, leading to a potential system compromise or data leakage.

Conceptual Example Code

Here is a conceptual example of an HTTP request that might exploit this vulnerability:

POST /wp-json/eventin/v1/speakers/<id> HTTP/1.1
Host: vulnerable-website.com
Content-Type: application/json
{
"email": "attacker@email.com"
}

In this example, the attacker replaces the `` with the ID of the target user’s account and `attacker@email.com` with the attacker’s email address. As a result, the attacker can reset the password of the target user’s account, effectively taking over the account.
It’s important to note that this is a conceptual example and real-world attacks could be more sophisticated or combined with other attack vectors. Nevertheless, this example demonstrates the critical nature of the vulnerability and the importance of applying the available patches or setting up WAF/IDS for temporary mitigation.