What is CVE-2026-16979?

CVE-2026-16979 is a medium-severity vulnerability in Smartcrawl Seo Checker, Analyzer & Optimizer, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-08-19.

How severe is CVE-2026-16979?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Smartcrawl Seo Checker, Analyzer & Optimizer

CVE-2026-16979

The SmartCrawl SEO checker, analyzer & optimizer WordPress plugin before 3.16.3 does not perform capability checks on two of its AJAX actions, allowing users with at least the Subscriber role to read the titles of private and draft posts by ID and to enumerate stored post-meta key names.

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Unknown Smartcrawl Seo Checker, Analyzer & Optimizer

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-16979?: CVE-2026-16979 is a medium-severity vulnerability in Smartcrawl Seo Checker, Analyzer & Optimizer, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-08-19.
How severe is CVE-2026-16979?: Medium severity. CVSS v3 base score is 4.3 out of 10.