Skip to main content

Event Tickets CVE-2026-65567

| EUVDEUVD-2026-49238 MEDIUM
Missing Authorization (CWE-862)
2026-07-27 Patchstack GHSA-j9rv-h4v3-795f
5.3
CVSS 3.1 · Vendor: Patchstack
View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Send crafted HTTP request to unauthenticated endpoint
  2. Exploit
    Exploit missing authorization check
  3. Impact
    Modify ticket data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

No authentication or user interaction is required; the vulnerability is exploitable via network requests to any affected WordPress site where Event Tickets is active in its default configuration. No special configuration, non-default setting, or privilege enables the flaw - it arises from a missing authorization check on a plugin endpoint. There are no limiting conditions beyond the target running a vulnerable version.

Impact

The CVSS 3.1 base score is 5.3 (Medium), with a vector indicating network attack surface, low complexity, no privileges, and no user interaction, but only a low integrity impact. EPSS data is not available for this CVE, so exploitation probability estimates are incomplete. The vulnerability is not listed in CISA's Known Exploited Vulnerabilities catalog, and no public proof-of-concept code has been identified. Using SSVC decision factors: exploitation status is none, automatable (likely due to AV:N and AC:L), and technical impact is partial. The real-world risk is moderate - an automated attack is possible, but the low impact limits the urgency. Missing EPSS and KEV signals prevent a high-confidence risk assessment; the low CVSS integrity score suggests this may be a nuisance event rather than a critical threat.

Exploit ScenarioDerived

An attacker scans for WordPress sites running Event Tickets <= 5.29.0.1, then sends a specially crafted HTTP request to a vulnerable endpoint that lacks proper authorization checks. This allows the attacker to modify ticket-related data, such as prices or availability, without authentication. With a publicly accessible endpoint and no user interaction, an automated script could exploit this across multiple installations.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Jul 27, 2026

An unauthenticated broken access control vulnerability in Event Tickets through version 5.29.0.1 allows remote attackers to modify event ticket data without authentication. The vulnerability affects installations of the WordPress plugin where default configurations are in place, permitting unauthorized integrity impact. No active exploitation or public exploit code has been reported at the time of this analysis.

RemediationAI

Update the Event Tickets plugin to a version higher than 5.29.0.1 immediately, as per the Patchstack advisory. No workarounds are detailed in the available references. If patching is delayed, consider restricting access to the WordPress site via IP allow-listing or a web application firewall rule that blocks requests to the vulnerable endpoint (though the exact endpoint is not publicly disclosed). Disabling the plugin entirely will mitigate the risk but will break ticketing functionality.

Affected VersionsENISA

Event Tickets n/a ≤5.29.0.1

Affected Packages

euvd event_tickets no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The vulnerability resides in the Event Tickets plugin for WordPress, developed by Nexcess. It is a CWE-862: Missing Authorization issue, which occurs when the application does not verify that a requestor has the required permissions to perform a protected action. According to the CPE string (cpe:2.3:a:nexcess:event_tickets:*:*:*:*:*:*:*:*), all versions up to and including 5.29.0.1 are affected. The flaw allows an unauthenticated attacker to bypass access controls on a publicly accessible endpoint, enabling alteration of ticket-related data with low integrity impact and no confidentiality or availability consequences.

Know when Event Tickets gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

Vendor (Patchstack) PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
vuln.today AI 5.3 MEDIUM

Network-accessible, no complexity or user interaction; only low integrity impact without confidentiality or availability effects.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

DescriptionCVE.org

Unauthenticated Broken Access Control in Event Tickets <= 5.29.0.1 versions.

Threat Intelligence Overview

EPSS Score
0.2%
Top 93% exploitable
Prevalence
Medium
popular WordPress event management plugin
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

CVE-2019-16120 HIGH POC
8.8 Sep 08

CSV injection in the event-tickets (Event Tickets) plugin before 4.10.7.2 for WordPress exists via the "All Post> Ticket

CVE-2024-1316 MEDIUM POC
6.5 Mar 04

The Event Tickets and Registration WordPress plugin before 5.8.1, Events Tickets Plus WordPress plugin before 5.9.1 does

CVE-2026-97287 HIGH
8.5 Sep 30

Authenticated SQL injection in the Event Tickets WordPress plugin through version 5.29.5 allows any account holding the

CVE-2024-1319 MEDIUM POC
4.3 Mar 04

The Events Tickets Plus WordPress plugin before 5.9.1 does not prevent users with at least the contributor role from lea

CVE-2026-57705 HIGH
7.5 Jul 13

Broken access control in the Event Tickets WordPress plugin (versions up to and including 5.28.5) lets remote unauthenti

CVE-2026-78263 HIGH
7.1 Aug 24

Unauthenticated cross-site scripting in the Event Tickets WordPress plugin (versions ≤ 5.29.2.1) allows remote, unauthen

CVE-2026-93526 HIGH
7.1 Sep 23

Unauthenticated cross-site scripting in the Event Tickets WordPress plugin through version 5.29.4 enables remote attacke

CVE-2026-42662 MEDIUM
6.5 Jun 15

Unauthenticated authentication bypass in the Event Tickets WordPress plugin (versions ≤ 5.27.5 by Liquid Web / StellarWP

CVE-2025-1402 MEDIUM
5.3 Feb 21

The Event Tickets and Registration plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capa

CVE-2024-1053 MEDIUM
4.3 Feb 22

The Event Tickets and Registration plugin for WordPress is vulnerable to unauthorized access of data due to a missing ca

CVE-2026-104675 MEDIUM
4.3 Oct 05

Missing authorization checks in the WordPress Event Tickets plugin from Liquid Web / StellarWP (versions through 5.30.0)

CVE-2024-13457 MEDIUM
5.3 Jan 30

The Event Tickets and Registration plugin for WordPress is vulnerable to Insecure Direct Object Reference in all version

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy