CVE-2024-8016: events calendar — Fix

Description

The Events Calendar Pro plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 7.0.2 via deserialization of untrusted input from the 'filters' parameter in widgets. This makes it possible for authenticated attackers, with administrator-level access and above, to inject a PHP Object. The additional presence of a POP chain allows attackers to execute code remotely. In certain configurations, this can be exploitable by lower level users. We confirmed that this plugin installed with Elementor makes it possible for users with contributor-level access and above to exploit this issue.

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CVSS v3.1 Score

9.1

CRITICAL

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

Weakness Type (CWE)

CWE-502 Deserialization of Untrusted Data

Affected Products

Vendor	Product	Versions
theeventscalendar	events_calendar_pro	< 7.0.2.1

References

Advisories & Patches

https://theeventscalendar.com/blog/news/important-security-update-for-the-events-calendar-pro/

Other References

https://theeventscalendar.com/release-notes/events-calendar-pro/events-calendar-pro-7-0-2-1/ https://www.wordfence.com/threat-intel/vulnerabilities/id/34f0e5a6-0bd3-4734-b7e0-27dc825d193f?source=cve

Frequently Asked Questions

What is CVE-2024-8016? +

The Events Calendar Pro plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 7.0.2 via deserialization of untrusted input from the 'filters' parameter in widgets. This makes it possible for authenticated attackers, with administrator-level access and above, to inject a PHP Object. The additional presence of a POP chain allows attackers to execute code remotely. In certain configurations, this can be exploitable by lower level users. We confirmed that this plugin installed with Elementor makes it possible for users with contributor-level access and above to exploit this issue. It has a CVSS v3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2024-8016? +

CVE-2024-8016 has a CVSS v3.1 score of 9.1 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-8016? +

CVE-2024-8016 affects products from theeventscalendar, specifically: events_calendar_pro. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-8016? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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