Quick answers
- Is CVE-2026-15667 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-15667 being exploited in the wild.
- How severe is CVE-2026-15667?
- High severity, with a CVSS score of 7.5, published 9 September 2026.
- Which products and versions are affected?
- Eventin Event Calendar, Event Registration, Tickets & Booking up to and including 4.1.22.
- Is there a fix for CVE-2026-15667?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-15667 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-15667?
- Check whether you run Eventin Event Calendar, Event Registration or Tickets & Booking at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The plugin is vulnerable to Local File Inclusion (LFI) through the 'event_layout' parameter, affecting all versions up to 4.1.22. Authenticated attackers with contributor-level access or higher can exploit this via the REST API to include arbitrary .php files and execute arbitrary PHP code. The vulnerability exists because the etn_manage_event capability is assigned to contributors by default, allowing any contributor to set malicious event_layout values without additional authorization checks. An attacker can leverage this to bypass access controls, access sensitive data, or achieve remote code execution if .php files can be uploaded to the server.
Affected products
- Eventin Event Calendar, Event Registration, Tickets & Booking up to and including 4.1.22
Timeline
- 2026-09-09: disclosed