Vulnerability in Eventin

CVE-2026-13171

The Eventin WordPress plugin before 4.1.20 does not perform an authorization check on its waiting-list registration handler, allowing unauthenticated users to create WordPress user accounts for arbitrary email addresses and inject order records.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (23.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-13171: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

  • Eventin — versions 0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-13171?
CVE-2026-13171 is a high-severity vulnerability in Eventin, classified under Improper Access Control. CVSS score: 8.2/10. Published 2026-08-12.
How severe is CVE-2026-13171?
High severity. CVSS v3 base score is 8.2 out of 10.