CVE-2026-1667

SEO Plugin by Squirrly SEO <= 14.0.0 - Unauthenticated Arbitrary Post Creation and Stored Cross-Site Scripting via savePost()

Published Jul 10, 2026 CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Description
The SEO Plugin by Squirrly SEO plugin for WordPress is vulnerable to Arbitrary Post Creation and Stored Cross-Site Scripting in all versions up to, and including, 14.0.0 due to a leak of an API token and insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to create arbitrary posts, and, if the Advanced Custom Fields plugin is installed and activated, inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

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History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The SEO Plugin by Squirrly SEO plugin for WordPress is vulnerable to Arbitrary Post Creation and Stored Cross-Site Scripting in all versions up to, and including, 14.0.0 due to a leak of an API token and insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to create arbitrary posts, and, if the Advanced Custom Fields plugin is installed and activated, inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Title SEO Plugin by Squirrly SEO <= 14.0.0 - Unauthenticated Arbitrary Post Creation and Stored Cross-Site Scripting via savePost()
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Jul 10, 2026, 6:17 PM
Reserved
Jan 29, 2026, 9:38 PM
Status
Deferred
Published
Jul 10, 2026, 5:16 PM
Modified
Jul 10, 2026, 7:17 PM