What’s Vulnerable › Vulnerabilities

CVE-2023-3219: EventON < 2.1.2 - Unauthenticated Post Access via IDOR

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 7.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-07-10 · updated 2026-06-17
• Weakness: CWE-639

Description

The EventON WordPress plugin before 2.1.2 does not validate that the event_id parameter in its eventon_ics_download ajax action is a valid Event, allowing unauthenticated visitors to access any Post (including unpublished or protected posts) content via the ics export functionality by providing the numeric id of the post.

Affected products

• EventON: before 2.1.2 — fixed in 2.1.2

How to fix

Upgrade to a fixed version: EventON 2.1.2. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/173992/WordPress-EventON-Calendar-4.4-Insecure-Direct-Object-Reference.html
• https://wpscan.com/vulnerability/72d80887-0270-4987-9739-95b1a178c1fd
• http://packetstormsecurity.com/files/173992/WordPress-EventON-Calendar-4.4-Insecure-Direct-Object-Reference.html
• https://wpscan.com/vulnerability/72d80887-0270-4987-9739-95b1a178c1fd

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