Description
Unauthenticated Cross Site Scripting (XSS) in Event Tickets <= 5.29.4 versions.
Published: 2026-09-23
Score: 7.1 High
EPSS: n/a
KEV: No
Impact: Unauthenticated Cross Site Scripting that allows arbitrary client‑side script execution
Action: Apply Patch
AI Analysis

Impact

Unauthenticated Cross Site Scripting (XSS) is present in WordPress Event Tickets plugin versions up to 5.29.4. The flaw permits injection of malicious scripts into web pages viewed by other users, enabling session hijacking, defacement, or phishing. The vulnerability stems from insufficient input sanitization and is classified under CWE‑79.

Affected Systems

Vulnerable deployments use the WordPress Event Tickets plugin version 5.29.4 or earlier, including sites hosted by Nexcess. WordPress installations that include the plugin are at risk if not updated to at least 5.29.5.

Risk and Exploitability

The CVSS score of 7.1 indicates high severity for client‑side impact. Because the vulnerability is unauthenticated, any user can exploit it by accessing a crafted URL or page. The EPSS score is not available, and the vulnerability is not listed in CISA KEV, yet the ability to run arbitrary JavaScript in users’ browsers makes exploitation likely where the plugin is exposed.

Generated by OpenCVE AI on September 23, 2026 at 20:31 UTC.

Remediation

Vendor Solution

Update the WordPress Event Tickets Plugin to the latest available version (at least 5.29.5).

OpenCVE Recommended Actions

  • Update the WordPress Event Tickets plugin to version 5.29.5 or newer.
  • If an immediate update is not possible, disable the plugin on all affected sites until the fix is applied.
  • Sanitize or whitelist any dynamic content rendered by the plugin and monitor recent user inputs for injected scripts.

Generated by OpenCVE AI on September 23, 2026 at 20:31 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Wed, 23 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Nexcess
Nexcess event Tickets
Wordpress
Wordpress wordpress
Vendors & Products Nexcess
Nexcess event Tickets
Wordpress
Wordpress wordpress

Wed, 23 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Description Unauthenticated Cross Site Scripting (XSS) in Event Tickets <= 5.29.4 versions.
Title WordPress Event Tickets plugin <= 5.29.4 - Cross Site Scripting (XSS) vulnerability
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}

Subscriptions

Nexcess Event Tickets
Wordpress Wordpress
cve-icon MITRE

Status: PUBLISHED

Assigner: Patchstack

Published:

Updated: 2026-09-23T19:08:47.786Z

Reserved: 2026-09-18T08:47:30.166Z

Link: CVE-2026-93526

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-09-23T19:19:45.437

Modified: 2026-09-23T20:17:22.727

Link: CVE-2026-93526

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-23T20:45:09Z

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')