CVE-2026-9851

HIGHPre-NVD 7.27.2—
EchelonGraph scoreHIGH confidence

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

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.2Exploit: NoneExposed: 0

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

The Booking Package plugin for WordPress is vulnerable to Privilege Escalation via Account Takeover in versions up to, and including, 1.7.16. This is due to a missing capability check on the 'updateUser' branch of the package_app_action AJAX endpoint, where the handler only validates a nonce and the dispatcher invokes Schedule::updateUser() with the $administrator argument hard-coded to 1, bypassing the only owner-restriction check inside that function and allowing the target user to be determined solely by attacker-supplied input passed directly to wp_update_user(). This makes it possible for authenticated attackers, with Editor-level access and above, to change the email address and password of any account, including Administrator accounts, resulting in a full site takeover.

CVSS v3
7.2
EG Score
7.2(high)
EPSS
26.5%
KEV
Not listed

Published

June 6, 2026

Last Modified

June 8, 2026

References (5)

Vendor Advisories for CVE-2026-9851(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 25× in last 7d / 141× 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 147 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-9851?
CVE-2026-9851 is a high vulnerability published on June 6, 2026. The Booking Package plugin for WordPress is vulnerable to Privilege Escalation via Account Takeover in versions up to, and including, 1.7.16. This is due to a missing capability check on the 'updateUser' branch of the packageappaction AJAX endpoint, where the handler only validates a nonce and the…
When was CVE-2026-9851 disclosed?
CVE-2026-9851 was first published in the National Vulnerability Database on June 6, 2026, with the most recent update on June 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9851 actively exploited?
CVE-2026-9851 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 26.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-9851?
CVE-2026-9851 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-9851?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9851, 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.

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