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TI-2023-21472 Aliases CVE-2023-40680GHSA-h5fw-7h4g-p3xc

WordPress Yoast SEO Plugin <= 21.0 is vulnerable to Cross Site Scripting (XSS)

Priority LOW 27CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Team Yoast Yoast SEO allows Stored XSS.This issue affects Yoast SEO: from n/a through 21.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00427 37th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Team YoastYoast SEOup to 21.0—No fix listedCNA
  • Yoast SEO VendorTeam Yoast Affected up to 21.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:yoast:yoast_seo:*:*:*:*:*:wordpress:*:*up to 21.0VulnerableYoast
  • cpe:2.3:a:yoast:yoast_seo:*:*:*:*:*:wordpress:*:* Versions up to 21.0 Vulnerable ·Yoast

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-40680
  2. 2026-10-03 Alias added: GHSA-h5fw-7h4g-p3xc

References

  • TI-2024-22225 WordPress Custom field finder plugin <= 0.3 - PHP Object Injection vulnerability CVSS 3.1MEDIUM 5.4

Sources