What is CVE-2026-82884?

CVE-2026-82884 is a medium-severity vulnerability in All In One Seo, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-09-02.

How severe is CVE-2026-82884?

Medium severity. CVSS v3 base score is 6.8 out of 10.

XSS in All In One Seo

CVE-2026-82884

The All in One SEO WordPress plugin before 5.0.0.1 does not sanitise and escape some content stored in posts before rendering it back in the post editor, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks that trigger when a higher privileged user edits the post.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

Affected products

Unknown All In One Seo

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

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

Frequently asked questions

What is CVE-2026-82884?: CVE-2026-82884 is a medium-severity vulnerability in All In One Seo, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-09-02.
How severe is CVE-2026-82884?: Medium severity. CVSS v3 base score is 6.8 out of 10.