Order Manipulation Vulnerability in Eventin Plugin for WordPress
CVE-2026-77702

5.3MEDIUM

Key Information:

Vendor

WordPress

Status
Vendor
CVE Published:
16 September 2026

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2026-77702?

The Eventin WordPress plugin prior to version 4.1.24 contains a vulnerability that allows unauthenticated users to exploit the checkout process. This flaw permits guests to use a token issued at checkout to manipulate existing orders, specifically replacing purchased tickets with free alternatives. This oversight enables unauthorized ticket changes and poses a significant risk to revenue and order integrity.

Affected Version(s)

Eventin 0 < 4.1.24

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nir Yehoshua
WPScan
.