Yoast SEO <= 2.1.1 — Cross Site Scripting via post_title parameter
CVE-2012-6692Published · Updated Action summary
Affected: ≤2.1.1Update to 2.2 or newer
All remediation steps- Severity
- Medium6.1
- CVSS
- 6.1CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:RUser interaction- Required
S:CScope- Changed
C:LConfidentiality- Low
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-79 Cross-Site Scripting
- Required access
- No account needed
- 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
- Affected≤ 2.1.1
- Patched in2.2
Update to 2.2 or newer.
You are affected if you run ≤ 2.1.1. Version 2.2 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.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 2.2, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- 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.
Cross-site scripting (XSS) vulnerability in js/wp-seo-metabox.js in the WordPress SEO by Yoast plugin before 2.2 for WordPress allows remote attackers to inject arbitrary web script or HTML via the post_title parameter to wp-admin/post-new.php, which is not properly handled in the snippet preview functionality.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Yoast SEO – Advanced SEO with real-time guidance and built-in AI
All 20| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.4 | Authenticated (Author+) Stored Cross-Site Scripting via Post Slug (post_name) ≤28.0Update to 28.1 | CVE-2026-15425 | |
| Medium4.3 | Insecure Direct Object Reference to Authenticated (Contributor+) Sensitive Information Exposure via 'post_id' Parameter ≤26.5Update to 26.6 | CVE-2025-14481 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting via 'jsonText' Block Attribute ≤27.1.1Update to 27.2 | CVE-2026-3427 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting via 'yoast-schema' Block Attribute ≤26.8Update to 26.9 | CVE-2026-1293 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤22.6Update to 22.7 | CVE-2024-4984 |
- Medium6.4Authenticated (Author+) Stored Cross-Site Scripting via Post Slug (post_name)
≤28.0Update to 28.1
- Medium4.3Insecure Direct Object Reference to Authenticated (Contributor+) Sensitive Information Exposure via 'post_id' Parameter
≤26.5Update to 26.6
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'jsonText' Block Attribute
≤27.1.1Update to 27.2
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'yoast-schema' Block Attribute
≤26.8Update to 26.9
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤22.6Update to 22.7
Same weakness (Cross-Site Scripting)
All Cross-Site Scripting| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
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Timeline
CVE published
Severity medium, CVSS 6.1
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.