CVE-2024-8016: theeventscalendar events_calendar_pro Deserialization of Untrusted Data
Vulnerability summary
CVE-2024-8016 is a critical (CVSS 9.1) Deserialization of Untrusted Data vulnerability in theeventscalendar events_calendar_pro. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 53.8% of scored vulnerabilities.
Timeline
- 30-08-2024PublishedVulnerability first disclosed.
- 08-04-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 version- NVDNIST7.2HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HDiffers
- wordfenceSource9.1CriticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS trend
Probability
0.74%
Chance of exploitation in the next 30 days
Percentile
54%
Versus all other CVEs
30-day change
0.00 pp
From 0.74% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Theeventscalendar2 products
- events_calendar_pro< 7.0.2.1
- the events calendar pro≤ 7.0.2
Wordpress1 product
- events-calendar-pro≤ 7.0.2 (fixed in 7.0.2.1)
2 vendors · 3 products