What is CVE-2026-5075?

CVE-2026-5075 is a medium-severity vulnerability in Smub All In One Seo – Powerful Plugin To Boost Rankings & Increase Traffic, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-05-20.

How severe is CVE-2026-5075?

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

Information disclosure in Smub All In One Seo – Powerful Plugin To Boost Rankings & Increase Traffic

CVE-2026-5075

The All in One SEO plugin for WordPress is vulnerable to Sensitive Information Exposure via 'internalOptions' localized script data in versions up to, and including, 4.9.7 due to sensitive internal option data being passed to wp_localize_script() in post editor contexts without effective masking for low-privilege users. This makes it possible for authenticated attackers, with contributor-level access and above, to view configured API/OAuth tokens and license-related values from page source.

Vulnerability class: Information Disclosure

EPSS: 0.003 (20.9th percentile) — read the EPSS interpretation.

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

Smub All In One Seo – Powerful Plugin To Boost Rankings & Increase Traffic — versions 0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

Frequently asked questions

What is CVE-2026-5075?: CVE-2026-5075 is a medium-severity vulnerability in Smub All In One Seo – Powerful Plugin To Boost Rankings & Increase Traffic, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-05-20.
How severe is CVE-2026-5075?: Medium severity. CVSS v3 base score is 4.3 out of 10.