CVE-2026-38526

CRITICALNVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-04-14. NVD baseline CVSS 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 4%CVSS: 9.9Exploit: Elevated riskExposed: 0

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

An authenticated arbitrary file upload vulnerability in the /admin/tinymce/upload endpoint of Webkul Krayin CRM v2.2.x allows attackers to execute arbitrary code via uploading a crafted PHP file.

CVSS v3
9.9
EG Score
9.9(medium)
EG Risk
61(Track)
EG Risk 61/100SSVC: 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
Severity99% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
4%
EPSS %ILE
89%
KEV
Not listed

Published

April 14, 2026

Last Modified

April 17, 2026

Advisory Details (3)

Auto-updated Sep 14, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Security-Advisories/CVE-2026-38526/poc.md at main · TREXNEGRO/Security-Advisories · GitHub

https://github.com/TREXNEGRO/Security-Advisories/blob/main/CVE-2026-38526/poc.md
generic

GitHub - krayin/laravel-crm: Krayin CRM is Free & Open Source CRM Built with Laravel for Customer, Lead, and Sales Management. · GitHub

https://github.com/krayin/laravel-crm
generic🟡 PoC Available

Security-Advisories/CVE-2026-38526 at main · TREXNEGRO/Security-Advisories · GitHub

https://github.com/TREXNEGRO/Security-Advisories/tree/main/CVE-2026-38526

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 234 total refreshes for this CVE.

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

Publicly available exploits

(3 references)

Working exploit code is in the public domain (2 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCCerberusMrXi/KrayinCRM-RCE-Exploit-CVE-2026-38526
    First seen Jul 13, 2026

    CVE-2026-38526 exploit for Krayin CRM v2.2.x - Authenticated RCE via TinyMCE file upload bypass. Features interactive shell, multi-type payloads, auto shell generation, and verification. Author: Sudeepa Wanigarathna. For authorized testing only.

    Open source ↗
  • Exploit-DBEDB-52629
    First seen Jul 8, 2026

    Krayin CRM v2.2.x - Authenticated Remote Code Execution

    Open source ↗
  • GitHub PoCNathanHimself/CVE-2026-38526-PoC
    First seen May 16, 2026

    CVE-2026-38526 | Krayin CRM v2.2.x Authenticated RCE - Unrestricted PHP File Upload via TinyMCE

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-38526?
CVE-2026-38526 is a critical vulnerability published on April 14, 2026. An authenticated arbitrary file upload vulnerability in the /admin/tinymce/upload endpoint of Webkul Krayin CRM v2.2.x allows attackers to execute arbitrary code via uploading a crafted PHP file.
When was CVE-2026-38526 disclosed?
CVE-2026-38526 was first published in the National Vulnerability Database on April 14, 2026, with the most recent update on April 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-38526 actively exploited?
CVE-2026-38526 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 10.5% of all scored CVEs.
What is the CVSS score of CVE-2026-38526?
CVE-2026-38526 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-38526?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-38526, 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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