CVE-2026-16534

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-03. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: Elevated riskExposed: 0

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

The Import and export users and customers WordPress plugin before 2.4.2 does not enforce WordPress's role-assignment and per-user edit permissions during CSV import, allowing a user holding only the user-creation capability to create an administrator account and to overwrite an existing administrator's password or email.

CVSS v3
9.1
EG Score
9.1(high)
EG Risk
72(Attend)
EG Risk 72/100SSVC: Attend

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
Severity91% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

August 3, 2026

Last Modified

August 3, 2026

Advisory Details (1)

Auto-updated Aug 3, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Import and export users and customers < 2.4.2 – Custom Role Privilege Escalation to Administrator via CSV Import | CVE 2026-16534 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/0d1246a0-3cd1-4b6d-bd3e-6ed89745da26/

Vendor Advisories for CVE-2026-16534(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 55× in last 7d / 142× 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 142 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16534?
CVE-2026-16534 is a critical vulnerability published on August 3, 2026. The Import and export users and customers WordPress plugin before 2.4.2 does not enforce WordPress's role-assignment and per-user edit permissions during CSV import, allowing a user holding only the user-creation capability to create an administrator account and to overwrite an existing…
When was CVE-2026-16534 disclosed?
CVE-2026-16534 was first published in the National Vulnerability Database on August 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16534 actively exploited?
CVE-2026-16534 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 85.7% of all scored CVEs.
What is the CVSS score of CVE-2026-16534?
CVE-2026-16534 has a CVSS v3.1 base score of 9.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-16534?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16534, 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

Explore the affected products and dependency analysis for CVE-2026-16534

Explore →

Is Your Infrastructure Affected by CVE-2026-16534?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs