CVE-2026-9643

🗓️ 24 Jun 2026 05:33:29Reported by WordfenceType

cve🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 17 Views🌐 WEB

Unauthenticated stored XSS in WordPress Meta SEO up to version four point five via 404 handling on the admin page.

Reporter	Title	Published	Views	Family All 8
ATTACKERKB	CVE-2026-9643	24 Jun 202605:33	–	attackerkb
Circl	CVE-2026-9643	24 Jun 202622:16	–	circl
Cvelist	CVE-2026-9643 WP Meta SEO <= 4.5.18 - Unauthenticated Stored Cross-Site Scripting via REQUEST_URI in 404 Logging	24 Jun 202605:33	–	cvelist
EUVD	EUVD-2026-38678	24 Jun 202605:33	–	euvd
NVD	CVE-2026-9643	24 Jun 202607:16	–	nvd
Patchstack	WordPress WP Meta SEO plugin <= 4.5.18 - Unauthenticated Stored Cross-Site Scripting vulnerability	24 Jun 202613:50	–	patchstack
Positive Technologies	PT-2026-51700	24 Jun 202600:00	–	ptsecurity
Vulnrichment	CVE-2026-9643 WP Meta SEO <= 4.5.18 - Unauthenticated Stored Cross-Site Scripting via REQUEST_URI in 404 Logging	24 Jun 202605:33	–	vulnrichment

Vulners

Node

joomunited wp_meta_seoRange≤4.5.18wordpress

[
  {
    "vendor": "joomunited",
    "product": "WP Meta SEO",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "lessThanOrEqual": "4.5.18",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

Source	Link
ti	www.ti.wordfence.io/vulnerabilities/ca91e41d-b728-4eb0-86d5-043813d8c2c1
wordfence	www.wordfence.com/threat-intel/vulnerabilities/id/beceb218-34bf-4571-a07b-939abc7ead8e
plugins	www.plugins.trac.wordpress.org/browser/wp-meta-seo/tags/4.5.18/inc/class.metaseo-broken-link-table.php
plugins	www.plugins.trac.wordpress.org/changeset
plugins	www.plugins.trac.wordpress.org/browser/wp-meta-seo/tags/4.5.18/wp-meta-seo.php
plugins	www.plugins.trac.wordpress.org/browser/wp-meta-seo/tags/4.5.18/wp-meta-seo.php

Parameter	Position	Path	Description	CWE
page	path	wp-admin/admin.php?page=metaseo_broken_link	Unauthenticated stored XSS via WP Meta SEO 4.x when 404 handling concatenates HTTP_HOST with REQUEST_URI and stores to database, reflected on the admin page /wp-admin/admin.php?page=metaseo_broken_link.	CWE-79

29 Jun 2026 20:17Current

6Medium risk

Vulners AI Score6

CVSS 3.17.2

EPSS0.00241

SSVC

CWE-79