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CVE-2026-120552 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

The SEO Engine – Smart SEO with AI, Schema & Redirection for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'title' parameter in all versions up to, and including, 0.9.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress core's wp_filter_kses (applied via title_save_pre for Contributors and Authors) strips literal tag markup on save but leaves HTML-entity-encoded payloads intact in the database, meaning entity-encoded XSS payloads stored via the standard WordPress REST API (POST /wp-json/wp/v2/posts) are not neutralized before reaching the vulnerable sink.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CNA: [email protected]CVSS-B:6.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://plugins.trac.wordpress.org/browser/seo-engine/tags/0.9.9/app/index.js	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/seo-engine/tags/0.9.9/classes/core.php#L739	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/seo-engine/tags/0.9.9/classes/core.php#L744	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/seo-engine/tags/0.9.9/classes/rest.php#L1381	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/seo-engine/tags/0.9.9/classes/rest.php#L164	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/changeset?old_path=/seo-engine/tags/0.9.9&new_path=/seo-engine/tags/1.0.0	[email protected]	Source CodeVendor
https://www.wordfence.com/threat-intel/vulnerabilities/id/454a05eb-fd4e-4125-abd0-7ba90ee2048a?source=cve	[email protected]	AdvisoryRemedy

see all 7 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
SEO Engine	<= 0.9.9 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: 1.0.0moderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 3, 2026	CVE Modified	CISA-ADP
Nov 3, 2026	New CVE Received	[email protected]