CVE-2026-12905

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-08-16. A secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 4.3Exploit: None knownExposed services: Not assessed

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

The Bookly plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 27.7 via the appointment() method of the Mobile Staff Cabinet API (resource=appointment, action=bookly_mobile_staff_cabinet) in frontend/modules/mobile_staff_cabinet/api/handlers/Handler1_0.php. This is due to the handler loading an Appointment by the attacker-supplied params[id] without verifying that the appointment's staff_id matches the authenticated staff member, whereas sibling operations (deleteAppointment, saveAppointment, appointments list) correctly scope to $this->staff->getId() when $this->role === ROLE_STAFF. This makes it possible for authenticated attackers, with staff-level mobile cabinet access (any valid access_key token bound to a Staff entity), to read appointment details — including the internal note and the full customer_appointments collection (customer full_name, email, phone, notes, custom_fields, extras, payment_total, payment_type, payment_status) — belonging to other staff members by enumerating sequential appointment IDs.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100CISA SSVC

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
Severity43% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
30th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 16, 2026

Last Modified

August 20, 2026

References (8)

Vendor Advisories for CVE-2026-12905(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 17× in last 7d / 71× 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 125 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-12905?
CVE-2026-12905 is a medium vulnerability published on August 16, 2026. The Bookly plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 27.7 via the appointment() method of the Mobile Staff Cabinet API (resource=appointment, action=booklymobilestaffcabinet) in…
When was CVE-2026-12905 disclosed?
CVE-2026-12905 was first published on August 16, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12905 actively exploited?
CVE-2026-12905 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-12905?
CVE-2026-12905 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-12905?
No fix for CVE-2026-12905 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-12905 are linked in the Vendor Advisories panel on this page.

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