CVE-2026-17020

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-08-10. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
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%CVSS: 4.3Exploit: None knownExposed: 0

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

The Salon Booking System WordPress plugin through 10.31.0 does not verify that a requested booking belongs to the caller on one of its REST API endpoints, requiring only a basic read capability, allowing any authenticated user (including a Subscriber or self-registered customer account) to disclose any customer's booking personal data such as name, email, phone number, address and private notes by enumerating booking identifiers.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 26, 2026

Advisory Details (1)

Auto-updated Aug 11, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Salon Booking System – Free Version <= 10.30.33 – Subscriber+ Arbitrary Booking PII Disclosure via IDOR | CVE 2026-17020 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/6e7852e9-0acd-4a79-9240-b864b14459a3/

Vendor Advisories for CVE-2026-17020(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 16× in last 7d / 73× 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 111 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-17020?
CVE-2026-17020 is a medium vulnerability published on August 10, 2026. The Salon Booking System WordPress plugin through 10.31.0 does not verify that a requested booking belongs to the caller on one of its REST API endpoints, requiring only a basic read capability, allowing any authenticated user (including a Subscriber or self-registered customer account) to disclose…
When was CVE-2026-17020 disclosed?
CVE-2026-17020 was first published in the National Vulnerability Database on August 10, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-17020 actively exploited?
CVE-2026-17020 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 94.2% of all scored CVEs.
What is the CVSS score of CVE-2026-17020?
CVE-2026-17020 has a CVSS v3.1 base score of 4.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-17020?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-17020, 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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