CVE-2020-36243

HIGHNVD 8.88.9▲
EchelonGraph scoreHIGH confidence

Score elevated to 8.9 because EPSS predicts 64% probability of exploitation within the next 30 days (top 0.9% of all CVEs). NVD baseline CVSS 8.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, nvd
Elevated
8.9EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 64%
CISA-KEV: Not listedEPSS PROB: 64%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

The Patient Portal of OpenEMR 5.0.2.1 is affected by a Command Injection vulnerability in /interface/main/backup.php. To exploit the vulnerability, an authenticated attacker can send a POST request that executes arbitrary OS commands via shell metacharacters.

CVSS v3
8.8
EG Score
8.9(high)
EG Risk
70(Track)
EG Risk 70/100SSVC: 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
Severity89% × 45%
Exploitation64% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
64%
EPSS %ILE
99%
KEV
Not listed

Published

February 7, 2021

Last Modified

November 21, 2024

Advisory Details (4)

Auto-updated Aug 9, 2026
No patch confirmed yet.
generic

OpenEMR Patches - OpenEMR Project Wiki

https://www.open-emr.org/wiki/index.php/OpenEMR_Patches
generic

[Tech Story] OpenEMR 5.0.2.1: Command Injection vulnerability puts health records at risk - Sonar Updates - Sonar Community

https://community.sonarsource.com/t/openemr-5-0-2-1-command-injection-vulnerability-puts-health-records-at-risk/33592
generic

OpenEMR 5.0.2 Patch 5 has been released - News - OpenEMR Community

https://community.open-emr.org/t/openemr-5-0-2-patch-5-has-been-released/15431
generic

Code vulnerabilities put health records at risk | Sonar

https://blog.sonarsource.com/openemr-5-0-2-1-command-injection-vulnerability

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 19× 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.

  1. 2026-09-24 14:00 UTCEPSS rescore
  2. 2026-09-22 14:43 UTCEPSS rescore
  3. 2026-09-21 20:28 UTCEPSS rescore
  4. 2026-09-18 19:23 UTCEPSS rescore
  5. 2026-09-17 19:22 UTCEPSS rescore
  6. 2026-09-16 14:04 UTCEPSS rescore
  7. 2026-09-15 03:06 UTCEPSS rescore
  8. 2026-09-12 14:57 UTCEPSS rescore
  9. 2026-09-11 09:32 UTCEPSS rescore
  10. 2026-09-07 15:57 UTCEPSS rescore
  11. 2026-09-06 23:01 UTCOSV refresh
  12. 2026-09-06 13:44 UTCEPSS rescore
  13. 2026-09-05 15:24 UTCEPSS rescore
  14. 2026-09-04 13:57 UTCEPSS rescore
  15. 2026-09-02 14:08 UTCEPSS rescore
  16. 2026-08-30 19:14 UTCEPSS rescore
  17. 2026-08-30 01:18 UTCEPSS rescore
  18. 2026-08-27 14:21 UTCEPSS rescore
  19. 2026-08-26 14:42 UTCEPSS rescore
  20. 2026-08-25 13:45 UTCEPSS rescore
  21. 2026-08-21 23:45 UTCEPSS rescore
  22. 2026-08-20 22:52 UTCEPSS rescore
  23. 2026-08-20 09:01 UTCOSV refresh
  24. 2026-08-19 17:00 UTCEPSS rescore
  25. 2026-08-18 13:44 UTCEPSS rescore
Show 75 more
  1. 2026-08-17 13:43 UTCEPSS rescore
  2. 2026-08-16 02:11 UTCEPSS rescore
  3. 2026-08-15 01:26 UTCEPSS rescore
  4. 2026-08-13 21:57 UTCEPSS rescore
  5. 2026-08-12 13:47 UTCEPSS rescore
  6. 2026-08-09 13:43 UTCEPSS rescore
  7. 2026-08-08 16:33 UTCEPSS rescore
  8. 2026-08-06 13:43 UTCEPSS rescore
  9. 2026-08-05 04:11 UTCOSV refresh
  10. 2026-07-30 16:25 UTCEPSS rescore
  11. 2026-07-30 01:27 UTCEPSS rescore
  12. 2026-07-28 15:33 UTCEPSS rescore
  13. 2026-07-26 14:51 UTCEPSS rescore
  14. 2026-07-25 14:15 UTCEPSS rescore
  15. 2026-07-24 14:14 UTCEPSS rescore
  16. 2026-07-23 14:15 UTCEPSS rescore
  17. 2026-07-23 14:15 UTCEPSS rescore
  18. 2026-07-23 01:53 UTCEG score recompute▲ 0.10
  19. 2026-07-22 22:39 UTCEG score recompute▼ 0.20
  20. 2026-07-22 14:05 UTCEPSS rescore
  21. 2026-07-21 15:22 UTCEPSS rescore
  22. 2026-07-21 15:22 UTCEPSS rescore
  23. 2026-07-20 17:04 UTCEPSS rescore
  24. 2026-07-20 17:04 UTCEPSS rescore
  25. 2026-07-19 14:28 UTCEPSS rescore
  26. 2026-07-19 14:28 UTCEPSS rescore
  27. 2026-07-19 02:22 UTCOSV refresh
  28. 2026-07-16 16:59 UTCEPSS rescore
  29. 2026-07-15 16:55 UTCEPSS rescore
  30. 2026-07-15 16:55 UTCEPSS rescore
  31. 2026-07-13 22:27 UTCEPSS rescore
  32. 2026-07-13 22:27 UTCEPSS rescore
  33. 2026-07-13 06:10 UTCEPSS rescore
  34. 2026-07-13 06:10 UTCEPSS rescore
  35. 2026-07-12 05:44 UTCEPSS rescore
  36. 2026-07-11 08:25 UTCEPSS rescore
  37. 2026-07-11 08:25 UTCEPSS rescore
  38. 2026-07-09 19:07 UTCEPSS rescore
  39. 2026-07-08 15:12 UTCEPSS rescore
  40. 2026-07-07 13:43 UTCEPSS rescore
  41. 2026-07-01 09:18 UTCOSV refresh
  42. 2026-06-28 04:54 UTCEPSS rescore
  43. 2026-06-28 04:54 UTCEPSS rescore
  44. 2026-06-27 03:06 UTCEPSS rescore
  45. 2026-06-27 03:06 UTCEPSS rescore
  46. 2026-06-25 13:48 UTCEPSS rescore
  47. 2026-06-24 14:03 UTCEPSS rescore
  48. 2026-06-24 14:03 UTCEPSS rescore
  49. 2026-06-23 21:31 UTCEPSS rescore
  50. 2026-06-23 21:31 UTCEPSS rescore
  51. 2026-06-21 14:54 UTCEPSS rescore
  52. 2026-06-21 14:54 UTCEPSS rescore
  53. 2026-06-18 17:50 UTCEPSS rescore
  54. 2026-06-18 17:50 UTCEPSS rescore
  55. 2026-06-17 17:50 UTCEPSS rescore
  56. 2026-06-16 17:50 UTCEPSS rescore
  57. 2026-06-15 17:46 UTCEPSS rescore
  58. 2026-06-13 22:58 UTCEPSS rescore
  59. 2026-06-13 14:43 UTCOSV refresh
  60. 2026-06-12 23:10 UTCEPSS rescore
  61. 2026-06-11 13:58 UTCEPSS rescore
  62. 2026-06-10 22:16 UTCEPSS rescore
  63. 2026-06-07 15:23 UTCEPSS rescore
  64. 2026-06-07 15:23 UTCEPSS rescore
  65. 2026-06-07 15:23 UTCEPSS rescore
  66. 2026-06-05 22:45 UTCEPSS rescore
  67. 2026-06-05 22:45 UTCEPSS rescore
  68. 2026-05-31 22:29 UTCEPSS rescore
  69. 2026-05-31 22:29 UTCEPSS rescore
  70. 2026-05-28 13:43 UTCEPSS rescore
  71. 2026-05-28 13:43 UTCEPSS rescore
  72. 2026-05-26 21:13 UTCEG score recompute
  73. 2026-05-26 21:13 UTCGHSA enrichment
  74. 2026-05-26 07:17 UTCEPSS rescore
  75. 2026-05-26 07:17 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2020-36243?
CVE-2020-36243 is a high vulnerability published on February 7, 2021. The Patient Portal of OpenEMR 5.0.2.1 is affected by a Command Injection vulnerability in /interface/main/backup.php. To exploit the vulnerability, an authenticated attacker can send a POST request that executes arbitrary OS commands via shell metacharacters.
When was CVE-2020-36243 disclosed?
CVE-2020-36243 was first published in the National Vulnerability Database on February 7, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-36243 actively exploited?
CVE-2020-36243 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64% probability of exploitation in the next 30 days, which ranks it in the top 0.8% of all scored CVEs.
What is the CVSS score of CVE-2020-36243?
CVE-2020-36243 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.9.
How do I remediate CVE-2020-36243?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-36243, 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.

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