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Event Tickets Manager for WooCommerce CVE-2026-34898

| EUVDEUVD-2026-36920 HIGH
Missing Authorization (CWE-862)
2026-06-15 Patchstack GHSA-f829-v66j-cjfv
7.5
CVSS 3.1 · Vendor: Patchstack
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Attack ChainAIDerived

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

  1. Access
    Identify WordPress sites running vulnerable plugin
  2. Delivery
    Send unauthenticated HTTP request to plugin endpoint
  3. Exploit
    Bypass missing authorization check
  4. Execution
    Invoke restricted ticket/event action
  5. Impact
    Tamper with plugin-managed 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

The target must be a WordPress site running the WP Swings 'Event Tickets Manager for WooCommerce' plugin at version 1.5.3 or earlier with the vulnerable endpoint reachable over the network (the default for any public WordPress install). No authentication, no user interaction, and no special configuration toggle is required per the CVSS vector PR:N/UI:N. The only meaningful limits on exploitation are that the plugin must be installed and active, that WooCommerce (its declared dependency) must be present so the affected code path loads, and that the site must not be fronted by a WAF rule that already filters anonymous calls to the plugin's admin-ajax or REST routes.

Impact

The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N indicates a network-reachable, low-complexity attack with no authentication or user interaction, which is consistent with an unauthenticated WordPress endpoint. Impact is scoped to integrity only (I:H, C:N, A:N), meaning an attacker can tamper with plugin-managed state (tickets, events, configuration) but the vendor does not credit data disclosure or denial of service. EPSS, KEV status, and SSVC data are not provided in the input, so real-world exploitation probability cannot be quantified; however, WordPress plugin broken-access-control issues are routinely automated against the install base, so the practical risk for exposed sites is meaningful even without confirmed in-the-wild activity. No public exploit was identified at time of analysis, but Patchstack's disclosure typically precedes detection rules and PoCs, so defenders should treat patching as time-sensitive.

Exploit ScenarioDerived

An unauthenticated attacker enumerates WordPress sites running Event Tickets Manager for WooCommerce <= 1.5.3 and sends crafted HTTP requests directly to a plugin endpoint that lacks an authorization check, invoking an action that should be gated to administrators or ticket owners. Because no user interaction or credentials are required (AV:N/AC:L/PR:N/UI:N), the attacker can script the request across many sites to modify event or ticket data at scale. No public PoC has been identified yet, but the advisory provides enough surface for one to be derived quickly.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jun 15, 2026

Broken access control in the Event Tickets Manager for WooCommerce WordPress plugin (versions up to and including 1.5.3) allows remote unauthenticated attackers to perform restricted actions or modify data without proper authorization checks. The flaw stems from a missing authorization layer (CWE-862) on one or more plugin endpoints, making it reachable directly over HTTP by anyone who can talk to the WordPress site. No public exploit has been identified at time of analysis, but the vulnerability was reported by Patchstack and is tracked under EUVD-2026-36920.

RemediationAI

No fixed version is published in the available data, so the status is best described as no vendor-released patch identified at time of analysis; site operators should monitor the Patchstack advisory and the WordPress.org plugin page for a release above 1.5.3 and upgrade as soon as it is published. As compensating controls, restrict access to the plugin's admin-ajax.php and REST endpoints (typically /wp-admin/admin-ajax.php and /wp-json/<plugin-namespace>/*) via a WAF rule or Patchstack vPatch, which may block legitimate front-end ticket flows and should be tested; alternatively, deactivate the plugin entirely if event sales are not currently in use, accepting the loss of ticketing functionality. Sites with strong concerns can also IP-allowlist the WordPress admin and block anonymous POSTs to plugin-specific actions, at the cost of breaking any public-facing ticket purchase or registration that the plugin handles unauthenticated.

Affected VersionsENISA

Event Tickets Manager for WooCommerce n/a ≤1.5.3

Affected Packages

euvd event_tickets_manager_for_woocommerce 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 affected component is the WP Swings 'Event Tickets Manager for WooCommerce' plugin, which extends WooCommerce to sell and manage event tickets on WordPress sites. The root cause is CWE-862 (Missing Authorization): one or more plugin actions (likely AJAX or REST endpoints typical of WooCommerce extensions) fail to verify the caller's capability or nonce before executing, so logic that should be gated to administrators or ticket owners is exposed to anonymous callers. The CPE 'cpe:2.3:a:wp_swings:event_tickets_manager_for_woocommerce' confirms the WP Swings vendor namespace; all branches at or below 1.5.3 are in scope.

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Severity by source

Vendor (Patchstack) PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
vuln.today AI 7.5 HIGH

Network-reachable WordPress plugin endpoint with missing authorization (PR:N, AC:L, UI:N); advisory describes unauthorized state modification only, so C:N/I:H/A:N.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/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
High
Availability
None

DescriptionCVE.org

Unauthenticated Broken Access Control in Event Tickets Manager for WooCommerce <= 1.5.3 versions.

Executive ViewAI

Why It Matters

The Event Tickets Manager for WooCommerce plugin (versions ≤1.5.3) contains a critical authorization bypass vulnerability enabling unauthenticated attackers to manipulate ticket data and perform unauthorized system actions on affected WordPress sites. Organizations using this plugin face immediate risk of ticket fraud, revenue manipulation, and operational disruption.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: Deploy WAF rules restricting unauthenticated access to plugin endpoints; disable the plugin entirely if operationally feasible; restrict WordPress site access to trusted IP ranges; implement application-layer request authentication; enable detailed HTTP logging on plugin endpoints to detect exploitation; subscribe to vendor security advisories for patch notification.

Threat Intelligence Overview

EPSS Score
0.2%
Top 84% exploitable
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 HIGH
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact
High
Technical Impact
Partial

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
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.

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