CVE Explorer
CVE-2026-9643
The WP Meta SEO plugin for WordPress is vulnerable to Unauthenticated Stored Cross-Site Scripting via the REQUEST_URI server variable in all versions up to, and including, 4.5.18. When the plugin's `wpmsTemplateRedirect()` hook detects a 404, it concatenates `$_SERVER['HTTP_HOST']` with the raw `$_SERVER['REQUEST_URI']` and inserts that value verbatim into the `wp_wpms_links.link_url` column via `$wpdb->insert()`. This makes it possible for unauthenticated attackers to inject arbitrary web scrip
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"WP Meta SEO","vendor":"joomunited","versions":[{"lessThanOrEqual":"4.5.18","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:b866ac4061784276e5626028e2b297feae271e0300a9b2372920b0cc7ee4ea9b · sha256:0514cf268495b1d4… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":7.2,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:b866ac4061784276e5626028e2b297feae271e0300a9b2372920b0cc7ee4ea9b · sha256:0514cf268495b1d4… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:b866ac4061784276e5626028e2b297feae271e0300a9b2372920b0cc7ee4ea9b · sha256:0514cf268495b1d4… · /containers/cna/problemTypes/0/descriptions/0
Source references
6 source assertions{"url":"https://plugins.trac.wordpress.org/browser/wp-meta-seo/tags/4.5.18/inc/class.metaseo-broken-link-table.php#L894"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b866ac4061784276e5626028e2b297feae271e0300a9b2372920b0cc7ee4ea9b · sha256:0514cf268495b1d4… · /containers/cna/references/1
{"url":"https://plugins.trac.wordpress.org/browser/wp-meta-seo/tags/4.5.18/wp-meta-seo.php#L1135"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b866ac4061784276e5626028e2b297feae271e0300a9b2372920b0cc7ee4ea9b · sha256:0514cf268495b1d4… · /containers/cna/references/3
{"url":"https://plugins.trac.wordpress.org/browser/wp-meta-seo/tags/4.5.18/wp-meta-seo.php#L1171"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b866ac4061784276e5626028e2b297feae271e0300a9b2372920b0cc7ee4ea9b · sha256:0514cf268495b1d4… · /containers/cna/references/2
{"url":"https://plugins.trac.wordpress.org/changeset?old_path=/wp-meta-seo/tags/4.5.12&new_path=/wp-meta-seo/tags/4.5.13"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b866ac4061784276e5626028e2b297feae271e0300a9b2372920b0cc7ee4ea9b · sha256:0514cf268495b1d4… · /containers/cna/references/4
{"url":"https://ti.wordfence.io/vulnerabilities/ca91e41d-b728-4eb0-86d5-043813d8c2c1"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b866ac4061784276e5626028e2b297feae271e0300a9b2372920b0cc7ee4ea9b · sha256:0514cf268495b1d4… · /containers/cna/references/5
{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/beceb218-34bf-4571-a07b-939abc7ead8e?source=cve"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b866ac4061784276e5626028e2b297feae271e0300a9b2372920b0cc7ee4ea9b · sha256:0514cf268495b1d4… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.