What is CVE-2026-86612?

CVE-2026-86612 is a medium-severity vulnerability in Ninja Tables, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 5.6/10. Published 2026-09-23.

How severe is CVE-2026-86612?

Medium severity. CVSS v3 base score is 5.6 out of 10.

Vulnerability in Ninja Tables

CVE-2026-86612

The Ninja Tables WordPress plugin before 5.2.17 does not restrict shortcode expansion to administrator-authored table rows which, in a non-default configuration, allows unauthenticated users to have arbitrary shortcodes executed on a public page, and to permanently break that page, by submitting an ordinary form entry.

Published 2026-09-23 · last modified 2026-09-23.

CVSS v3 metric

CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Ninja Tables

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

wpscan.com/vulnerability/4be7a5e0-9657-4692-904d-b696224e32ec/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-86612?: CVE-2026-86612 is a medium-severity vulnerability in Ninja Tables, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 5.6/10. Published 2026-09-23.
How severe is CVE-2026-86612?: Medium severity. CVSS v3 base score is 5.6 out of 10.