CVE-2026-5415

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-05. the CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:wordfence, epss, ghsa
Trending — 3 sources updated this week
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

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

The WP Captcha PRO (the premium version of the Advanced Google reCAPTCHA plugin, both have the same slug) plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 5.38. This is due to the ajax_run_tool() AJAX handler relying solely on a nonce check (check_ajax_referer) for security without performing any capability check, combined with the create_temporary_link tool allowing the generation of passwordless login links for arbitrary users, and the handle_temporary_links() function authenticating visitors via these links without any additional authorization validation. The required nonce is exposed to all authenticated backend users (including Subscribers) via wp_localize_script() on all non-settings admin pages when the plugin's welcome pointer has not been dismissed. This makes it possible for authenticated attackers, with Subscriber-level access and above, to bypass normal authentication and log in as any user, including Administrators, resulting in complete account takeover.

CVSS v3
8.8
EG Score
8.8(high)
EPSS
31.3%
KEV
Not listed

Published

June 5, 2026

Last Modified

June 6, 2026

Advisory Details (1)

Auto-updated Jun 5, 2026
No patch confirmed yet.
generic

WP Captcha - WP Captcha

https://getwpcaptcha.com

Vendor Advisories for CVE-2026-5415(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 28× in last 7d / 144× 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 152 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-5415?
CVE-2026-5415 is a high vulnerability published on June 5, 2026. The WP Captcha PRO (the premium version of the Advanced Google reCAPTCHA plugin, both have the same slug) plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 5.38. This is due to the ajaxruntool() AJAX handler relying solely on a nonce check…
When was CVE-2026-5415 disclosed?
CVE-2026-5415 was first published in the National Vulnerability Database on June 5, 2026, with the most recent update on June 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-5415 actively exploited?
CVE-2026-5415 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-5415?
CVE-2026-5415 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-5415?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5415, 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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