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CVE-2025-11517

Event Tickets and Registration <= 5.26.5 - Unauthenticated Ticket Payment Bypass

HIGH
7.5
CVSS Score
Published: October 18, 2025 at 06:42 AM UTC
Updated: October 9, 2026 at 10:10 AM UTC
1 product affected across 1 vendorEvent Tickets

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Severity
HIGH7.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

The Event Tickets and Registration plugin for WordPress is vulnerable to payment bypass in all versions up to, and including, 5.26.5. This is due to the /wp-json/tribe/tickets/v1/commerce/free/order endpoint not verifying that a ticket type should be free allowing the user to bypass the payment. This makes it possible for unauthenticated attackers to obtain access to paid tickets, without paying for them, causing a loss of revenue for the target.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Event Tickets· Stellarwpwordpress-plugin
90%
0 ≤ v ≤ 5.26.50

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://www.wordfence.com/threat-intel/vulnerabilities/id/21cd8cb8-2a29-4b66-ab7a-8d8b2f85e2e0?source=cve
Source: cverecord
https://plugins.trac.wordpress.org/changeset/3378214/event-tickets/tags/5.26.6/src/Tickets/Commerce/Gateways/Free/REST/Order_Endpoint.php

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHWordfence
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

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