CVE-2024-8016: The Events Calendar Pro (WordPress plugin) · Deserialization of Untrusted Data
Affects The Events Calendar Pro (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 9.1 Critical.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 54% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 30 Aug 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| theeventscalendar The Events Calendar Pro | Affected
| Fixed in– |
AI-suggested
Until an official fix is released, restrict access to administrator and contributor roles as appropriate, and consider disabling or limiting use of the vulnerable widget functionality. Monitor official sources for updates and apply patches promptly once available.
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.
References
- wordfence.com/threat-intel/vulnerabilities/id/34f0e5a6-0bd3-4734-b7e0-27dc825d193f?source=cve (opens in a new tab)
- theeventscalendar.com/release-notes/events-calendar-pro/events-calendar-pro-7-0-2-1/ (opens in a new tab)
- theeventscalendar.com/blog/news/important-security-update-for-the-events-calendar-pro/ (opens in a new tab)