Skip to main content

Event Tickets EUVDEUVD-2026-92322

| CVE-2026-104675 MEDIUM
Missing Authorization (CWE-862)
2026-10-05 Patchstack GHSA-w6v9-jxg8-mcfp
4.3
CVSS 3.1 · Vendor: Patchstack
View

Attack ChainAIDerived

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

  1. Access
    Authenticate as low-privilege user
  2. Exploit
    Send crafted request to unprotected plugin action
  3. Execution
    Bypass missing authorization check
  4. Impact
    Modify ticket/event data without permission

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

Requires a valid authenticated account on the target WordPress site at a low privilege level (CVSS PR:L) - typically any self-registered role such as subscriber, customer, or event attendee - so sites that permit open user registration are more exposed than those with closed registration. The flaw is a missing authorization check on an Event Tickets plugin action (CWE-862), so exploitation targets default installations of Event Tickets version n/a through 5.30.0; no special non-default configuration or user interaction is indicated. Limiting factors: the required authentication (no anonymous/unauthenticated path per PR:L), the integrity-only impact (no data disclosure or denial of service), and dependence on the site actually running the affected plugin version.

Impact

This is a genuine-but-low-priority issue. The provided CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N) scores 4.3 (Medium) and is internally consistent: network-reachable, low attack complexity, no user interaction, but requiring an authenticated low-privileged account (PR:L) and yielding only limited integrity impact (I:L) with no confidentiality or availability effect. The CWE-862 (Missing Authorization) classification and Patchstack's 'broken access control' title align with the I:L/C:N/A:N impact profile - an authenticated user performing an action they should not be authorized for, rather than data exfiltration or system compromise. No EPSS score, CISA KEV listing, POC, or SSVC decision data was provided, so there is no signal of active or probable exploitation; status is 'no public exploit identified at time of analysis.' Net: a real authorization defect worth patching in maintenance windows, not an emergency. The main caveat is the PR:L requirement - exploitation presupposes the attacker already holds a valid, low-privileged WordPress account (e.g., subscriber/customer/attendee), which meaningfully narrows the realistic threat population on sites that do not allow open registration.

Exploit ScenarioDerived

An attacker who holds a low-privileged authenticated account on a WordPress site running Event Tickets (≤5.30.0) sends a crafted request to a plugin endpoint that fails to verify the caller's authorization level, allowing them to modify ticket/event data they should not control. No user interaction is required and the attack is remote over the network, but a valid low-privilege login is a prerequisite. No public exploit code has been identified at the time of analysis.

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 – Oct 05, 2026

Missing authorization checks in the WordPress Event Tickets plugin from Liquid Web / StellarWP (versions through 5.30.0) allow an authenticated low-privilege user to carry out restricted ticket-related actions they should not be permitted to perform, resulting in limited integrity impact with no data disclosure or denial of service. As confirmed by the CVSS vector (PR:L), exploitation requires a valid account on the target site at a low privilege level - typically a self-registered subscriber, customer, or event attendee - so sites that allow open user registration carry more exposure than those with registration closed. No public exploit code has been identified at time of analysis and the issue is not reported as actively exploited; the assessed severity is low (CVSS 4.3), making this a genuine-but-low-priority hardening item rather than an emergency patch.

RemediationAI

Patch status is not confirmed by the available data: the only provided reference is the Patchstack advisory for the Event Tickets plugin at https://patchstack.com/database/wordpress/plugin/event-tickets/vulnerability/wordpress-event-tickets-plugin-5-30-0-broken-access-control-vulnerability?_s_id=cve, which documents the broken access control in version 5.30.0 but supplies no vendor-stated fixed version, so administrators should treat the advisory as the authoritative tracking page and upgrade to the first release newer than 5.30.0 once StellarWP publishes it. Until a fixed build is confirmed, apply compensating controls that directly match the PR:L prerequisite: disable open user registration (Settings > General > Membership) so unauthenticated visitors cannot self-provision the account needed to reach the vulnerable action - the trade-off is that legitimate attendees can no longer self-register and must be created manually; audit and strip unnecessary capabilities from low-privilege roles (subscriber, customer) using a role-management plugin, accepting the risk of breaking legitimate event workflows if a capability is removed too aggressively; and if ticketing is not in active use, deactivate and remove the Event Tickets plugin entirely, which eliminates the exposure but takes down all ticket and attendee functionality. A WAF or virtual-patching rule that blocks unauthenticated or low-privilege requests to event-tickets plugin admin-ajax and REST endpoints can add interim protection, though such rules must be tuned to avoid blocking legitimate attendee actions. Finally, review recent changes to event, ticket, and attendee records for evidence of unauthorized modification, since the sole impact class here is integrity.

Affected VersionsENISA

Event Tickets 0 ≤5.30.0

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 flaw is classified as CWE-862 (Missing Authorization) in the event-tickets WordPress plugin, meaning a plugin action or AJAX/REST handler executes its logic without verifying that the calling user holds the capability the action demands. WordPress capability checks typically rely on current_user_can() or a permission_callback on registered REST routes; when such a check is absent or incorrectly configured, any logged-in user reaching the endpoint inherits the action's effect - which is why the vendor and Patchstack frame it as exploiting incorrectly configured access control security levels. The CPE record cpe:2.3:a:liquid_web_/_stellarwp:event_tickets:*:*:*:*:*:*:*:* confirms the target is the Event Tickets plugin distributed by Liquid Web/StellarWP, and the affected range is all releases up to and including 5.30.0. Because the CVSS vector is AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N, the practical consequence is confined to unauthorized modification of plugin-managed data by an already-authenticated party, with no confidentiality or availability loss and no scope change into other components.

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 4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
vuln.today AI 4.3 MEDIUM

Missing authorization reachable over the network by any authenticated low-privilege user (PR:L, AV:N, AC:L, UI:N), granting unauthorized modification only, so I:L with C:N/A:N.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:L/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
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

DescriptionCVE.org

Missing Authorization vulnerability in Liquid Web / StellarWP Event Tickets event-tickets allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Event Tickets: from n/a through 5.30.0.

Threat Intelligence Overview

EPSS Score
0.2%
Top 95% exploitable
Prevalence
Medium
popular StellarWP WordPress plugin, large but not universal install base
Data Quality
6 sources
Confidence: High

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

22
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +22
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-2026-65567 MEDIUM
5.3 Jul 27

An unauthenticated broken access control vulnerability in Event Tickets through version 5.29.0.1 allows remote attackers

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-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