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Yoast SEO <= 9.1.0 — Race Condition to Remote Code Execution

CVE-2018-19370Published · Updated

Action summary

Affected: ≤9.1.0Update to 9.2.0 or newer

All remediation steps
Watch plugin
Severity
Medium6.6
CVSS
6.6
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:H Attack complexity
High
PR:H Privileges required
High
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Yoast SEO – Advanced SEO with real-time guidance and built-in AI wordpress-seo

  1. Affected≤ 9.1.0
  2. Patched in9.2.0

Update to 9.2.0 or newer.

You are affected if you run ≤ 9.1.0. Version 9.2.0 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Yoast SEO – Advanced SEO with real-time guidance and built-in AI.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 9.2.0, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Yoast SEO – Advanced SEO with real-time guidance and built-in AI to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence.

A Race condition vulnerability in unzip_file in admin/import/class-import-settings.php in the Yoast SEO (wordpress-seo) plugin before 9.2.0 for WordPress allows an SEO Manager to perform command execution on the Operating System via a ZIP import.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Yoast SEO – Advanced SEO with real-time guidance and built-in AI

All 20
More vulnerabilities in Yoast SEO – Advanced SEO with real-time guidance and built-in AI
SeverityVulnerabilityCVEPublished
Medium6.4Authenticated (Author+) Stored Cross-Site Scripting via Post Slug (post_name)
≤28.0Update to 28.1
CVE-2026-15425
Medium4.3Insecure Direct Object Reference to Authenticated (Contributor+) Sensitive Information Exposure via 'post_id' Parameter
≤26.5Update to 26.6
CVE-2025-14481
Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'jsonText' Block Attribute
≤27.1.1Update to 27.2
CVE-2026-3427
Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'yoast-schema' Block Attribute
≤26.8Update to 26.9
CVE-2026-1293
Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤22.6Update to 22.7
CVE-2024-4984

Timeline

  1. CVE published

    Severity medium, CVSS 6.6

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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