CVE-2026-1830

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-04-09. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 8%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

The Quick Playground plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.3.1. This is due to insufficient authorization checks on REST API endpoints that expose a sync code and allow arbitrary file uploads. This makes it possible for unauthenticated attackers to retrieve the sync code, upload PHP files with path traversal, and achieve remote code execution on the server.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Track)
EG Risk 75/100SSVC: 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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
8%
EPSS %ILE
94%
KEV
Not listed

Published

April 9, 2026

Last Modified

April 24, 2026

References (4)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 26× 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 232 total refreshes for this CVE.

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

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-52596
    First seen May 29, 2026

    Quick Playground for WordPress 1.3.1 - Unauthenticated Remote Code Execution

    Open source ↗
  • Nucleihttp/cves/2026/CVE-2026-1830.yaml
    First seen Jan 1, 2026

    Quick Playground <= 1.3.1 - Missing Authorization to Unauthenticated Arbitrary File Upload

    Open source ↗

Frequently asked(5)

What is CVE-2026-1830?
CVE-2026-1830 is a critical vulnerability published on April 9, 2026. The Quick Playground plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.3.1. This is due to insufficient authorization checks on REST API endpoints that expose a sync code and allow arbitrary file uploads. This makes it possible for unauthenticated…
When was CVE-2026-1830 disclosed?
CVE-2026-1830 was first published in the National Vulnerability Database on April 9, 2026, with the most recent update on April 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-1830 actively exploited?
CVE-2026-1830 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 8% probability of exploitation in the next 30 days, which ranks it in the top 5.5% of all scored CVEs.
What is the CVSS score of CVE-2026-1830?
CVE-2026-1830 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-1830?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1830, 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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