CVE-2026-9643

HIGHPre-NVD 7.27.2—
EchelonGraph scoreMEDIUM confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-06-24. a secondary CVSS source baseline 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
7.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.2Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 scripts that execute whenever an administrator views the plugin's 404 & Redirects admin page (/wp-admin/admin.php?page=metaseo_broken_link).

CVSS v3
7.2
EG Score
7.2(medium)
EG Risk
48(Track)
EG Risk 48/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity72% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

Published

June 24, 2026

Last Modified

June 29, 2026

Advisory Details (1)

Auto-updated Jun 24, 2026
No patch confirmed yet.
generic

Login | Wordfence Threat Intelligence

https://ti.wordfence.io/vulnerabilities/ca91e41d-b728-4eb0-86d5-043813d8c2c1

Vendor Advisories for CVE-2026-9643(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 63× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 206 total refreshes for this CVE.

  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-11 09:38 UTCEPSS rescore
  3. 2026-09-10 09:35 UTCEPSS rescore
  4. 2026-09-08 22:01 UTCEPSS rescore
  5. 2026-09-06 13:48 UTCEPSS rescore
  6. 2026-09-05 15:31 UTCEPSS rescore
  7. 2026-09-04 05:07 UTCEPSS rescore
  8. 2026-09-02 14:12 UTCEPSS rescore
  9. 2026-09-01 13:54 UTCEPSS rescore
  10. 2026-09-01 04:40 UTCEPSS rescore
  11. 2026-08-30 20:23 UTCEG score recompute
  12. 2026-08-30 20:23 UTCGHSA enrichment
  13. 2026-08-30 19:18 UTCEPSS rescore
  14. 2026-08-30 01:22 UTCEPSS rescore
  15. 2026-08-28 21:42 UTCEPSS rescore
  16. 2026-08-28 04:56 UTCEG score recompute
  17. 2026-08-28 04:56 UTCGHSA enrichment
  18. 2026-08-27 14:25 UTCEPSS rescore
  19. 2026-08-26 14:47 UTCEPSS rescore
  20. 2026-08-25 13:49 UTCEPSS rescore
  21. 2026-08-24 22:03 UTCEG score recompute
  22. 2026-08-24 22:03 UTCGHSA enrichment
  23. 2026-08-24 14:18 UTCEPSS rescore
  24. 2026-08-24 04:41 UTCGHSA enrichment
  25. 2026-08-23 14:21 UTCGHSA enrichment
Show 75 more
  1. 2026-08-23 02:06 UTCEG score recompute
  2. 2026-08-23 02:06 UTCGHSA enrichment
  3. 2026-08-23 00:19 UTCEPSS rescore
  4. 2026-08-22 13:39 UTCEG score recompute
  5. 2026-08-22 13:39 UTCGHSA enrichment
  6. 2026-08-21 23:49 UTCEPSS rescore
  7. 2026-08-21 20:31 UTCGHSA enrichment
  8. 2026-08-21 08:15 UTCEG score recompute
  9. 2026-08-21 08:15 UTCGHSA enrichment
  10. 2026-08-20 22:56 UTCEPSS rescore
  11. 2026-08-20 19:59 UTCGHSA enrichment
  12. 2026-08-20 07:42 UTCEG score recompute
  13. 2026-08-20 07:41 UTCGHSA enrichment
  14. 2026-08-19 17:04 UTCEPSS rescore
  15. 2026-08-19 16:32 UTCGHSA enrichment
  16. 2026-08-19 04:17 UTCEG score recompute
  17. 2026-08-19 04:17 UTCGHSA enrichment
  18. 2026-08-18 13:49 UTCEPSS rescore
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-17 11:25 UTCGHSA enrichment
  21. 2026-08-16 23:09 UTCEG score recompute
  22. 2026-08-16 23:09 UTCGHSA enrichment
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-16 10:54 UTCEG score recompute
  25. 2026-08-16 10:54 UTCGHSA enrichment
  26. 2026-08-16 02:15 UTCEPSS rescore
  27. 2026-08-15 22:39 UTCGHSA enrichment
  28. 2026-08-15 10:24 UTCEG score recompute
  29. 2026-08-15 10:24 UTCGHSA enrichment
  30. 2026-08-15 01:31 UTCEPSS rescore
  31. 2026-08-14 22:08 UTCGHSA enrichment
  32. 2026-08-14 09:53 UTCEG score recompute
  33. 2026-08-14 09:53 UTCGHSA enrichment
  34. 2026-08-13 22:00 UTCEPSS rescore
  35. 2026-08-13 21:37 UTCGHSA enrichment
  36. 2026-08-13 09:13 UTCGHSA enrichment
  37. 2026-08-12 20:57 UTCEG score recompute
  38. 2026-08-12 20:57 UTCGHSA enrichment
  39. 2026-08-12 13:51 UTCEPSS rescore
  40. 2026-08-12 08:42 UTCGHSA enrichment
  41. 2026-08-11 20:27 UTCEG score recompute
  42. 2026-08-11 20:27 UTCGHSA enrichment
  43. 2026-08-11 13:43 UTCEPSS rescore
  44. 2026-08-11 08:12 UTCEG score recompute
  45. 2026-08-11 08:12 UTCGHSA enrichment
  46. 2026-08-11 00:00 UTCEPSS rescore
  47. 2026-08-10 19:57 UTCGHSA enrichment
  48. 2026-08-10 07:41 UTCGHSA enrichment
  49. 2026-08-09 19:26 UTCEG score recompute
  50. 2026-08-09 19:26 UTCGHSA enrichment
  51. 2026-08-09 13:47 UTCEPSS rescore
  52. 2026-08-09 07:11 UTCGHSA enrichment
  53. 2026-08-08 18:56 UTCEG score recompute
  54. 2026-08-08 18:56 UTCGHSA enrichment
  55. 2026-08-08 16:37 UTCEPSS rescore
  56. 2026-08-08 06:40 UTCGHSA enrichment
  57. 2026-08-07 18:25 UTCEG score recompute
  58. 2026-08-07 18:25 UTCGHSA enrichment
  59. 2026-08-07 16:30 UTCEPSS rescore
  60. 2026-08-07 06:10 UTCGHSA enrichment
  61. 2026-08-06 17:54 UTCGHSA enrichment
  62. 2026-08-06 05:38 UTCEG score recompute
  63. 2026-08-06 05:38 UTCGHSA enrichment
  64. 2026-08-05 19:17 UTCEPSS rescore
  65. 2026-08-05 17:23 UTCGHSA enrichment
  66. 2026-08-05 03:34 UTCGHSA enrichment
  67. 2026-08-04 15:13 UTCEG score recompute
  68. 2026-08-04 15:13 UTCGHSA enrichment
  69. 2026-08-04 15:10 UTCEPSS rescore
  70. 2026-08-04 10:39 UTCEPSS rescore
  71. 2026-08-03 20:13 UTCEG score recompute
  72. 2026-08-03 20:13 UTCGHSA enrichment
  73. 2026-08-03 10:36 UTCEPSS rescore
  74. 2026-08-03 07:58 UTCGHSA enrichment
  75. 2026-08-02 17:10 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9643?
CVE-2026-9643 is a high vulnerability published on June 24, 2026. The WP Meta SEO plugin for WordPress is vulnerable to Unauthenticated Stored Cross-Site Scripting via the REQUESTURI server variable in all versions up to, and including, 4.5.18. When the plugin's wpmsTemplateRedirect() hook detects a 404, it concatenates $SERVER['HTTPHOST'] with the raw…
When was CVE-2026-9643 disclosed?
CVE-2026-9643 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9643 actively exploited?
CVE-2026-9643 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 64.7% of all scored CVEs.
What is the CVSS score of CVE-2026-9643?
CVE-2026-9643 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-9643?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9643, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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