CVE-2026-65438

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-28. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

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

Unauthenticated Cross Site Scripting (XSS) in Message Filter for Contact Form 7 <= 1.6.3.9 versions.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

July 27, 2026

Last Modified

July 28, 2026

Advisory Details (1)

Auto-updated Jul 27, 2026
No patch confirmed yet.
generic

Cross Site Scripting (XSS) in WordPress Message Filter for Contact Form 7 Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/cf7-message-filter/vulnerability/wordpress-message-filter-for-contact-form-7-plugin-1-6-3-9-cross-site-scripting-xss-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-65438(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 20× in last 7d / 111× 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 133 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-65438?
CVE-2026-65438 is a high vulnerability published on July 27, 2026. Unauthenticated Cross Site Scripting (XSS) in Message Filter for Contact Form 7 <= 1.6.3.9 versions.
When was CVE-2026-65438 disclosed?
CVE-2026-65438 was first published in the National Vulnerability Database on July 27, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-65438 actively exploited?
CVE-2026-65438 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 96.2% of all scored CVEs.
What is the CVSS score of CVE-2026-65438?
CVE-2026-65438 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-65438?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65438, 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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