What’s Vulnerable › Vulnerabilities

CVE-2023-4388: EventON < 2.2 - Admin+ Stored XSS

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-10-16 · updated 2026-06-17

Description

The EventON WordPress plugin before 2.2 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Affected products

• EventON: before 2.2 — fixed in 2.2

How to fix

Upgrade to a fixed version: EventON 2.2. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/4086b62c-c527-4721-af63-7f2687c98648
• https://wpscan.com/vulnerability/4086b62c-c527-4721-af63-7f2687c98648

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