CVE-2026-78263

Received Received - Intake

Unauthenticated XSS in Event Tickets Plugin

Publication date: 2026-08-24

Last updated on: 2026-08-24

Assigner: Patchstack

Description

Unauthenticated Cross Site Scripting (XSS) in Event Tickets <= 5.29.2.1 versions.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-24

Last Modified

2026-08-24

Generated

2026-08-25

AI Q&A

2026-08-25

EPSS Evaluated

N/A

NVD

CVE-2026-78263

Affected Vendors & Products

Vendor	Product	Version / Range
event_tickets	event_tickets	to 5.29.2.1 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This is an Unauthenticated Cross Site Scripting (XSS) vulnerability affecting Event Tickets plugin versions up to and including 5.29.2.1. XSS allows attackers to inject malicious scripts into web pages viewed by other users without needing authentication.

Detection Guidance

Since this is an XSS vulnerability in Event Tickets <= 5.29.2.1, check for outdated plugin versions. Use commands like 'grep -r "Event Tickets" /var/www/' to locate the plugin. Inspect version numbers in files like 'event-tickets.php'.

Impact Analysis

An attacker could exploit this to steal user sessions, redirect users to malicious sites, or deface the website. Users with admin privileges could have their accounts compromised, leading to full site takeover.

Compliance Impact

This vulnerability could lead to unauthorized access to user data, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Non-compliance may result in legal penalties and reputational damage.

Mitigation Strategies

Update Event Tickets to the latest version immediately. If updating is not possible, disable the plugin temporarily until a patch is applied. Review user input validation in forms handled by the plugin.

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