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Vulnerability record · CVE-2023-4635 · published 21 October 2023

CVE-2023-4635: Myeventon eventon-lite cross-site scripting vulnerability

Myeventon · Eventon Lite

The EventON plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'tab' parameter in versions up to, and including, 2.2.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

6.1 CVSS 3.1 Medium EPSS 0.61% · top 52.7% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score
0.61%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

The EventON plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'tab' parameter in versions up to, and including, 2.2.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/xsn1210/vul/blob/main/xss%5BEventON%5D%20.md ExploitThird Party Advisory
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2981861%40eventon-lite&new=2981861%40ev
https://www.wordfence.com/threat-intel/vulnerabilities/id/115ad0b2-febe-485a-8fb5-9bd6edc37ef7?source=cve ExploitThird Party Advisory
https://github.com/xsn1210/vul/blob/main/xss%5BEventON%5D%20.md ExploitThird Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/115ad0b2-febe-485a-8fb5-9bd6edc37ef7?source=cve ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-4635), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.