CVE-2020-10505

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 1.1% (63rd percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.1%CVSS: 9.8Exploit: None knownExposed services: Not assessed

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

The School Manage System before 2020, developed by ALLE INFORMATION CO., LTD., contains a vulnerability of SQL Injection, an attacker can use a union based injection query string to get databases schema and username/password.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
49
EG Risk 49/100CISA SSVC

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%
Exploitation1% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
1.1%
EPSS %ILE
63rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

April 15, 2020

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Oct 4, 2026
No fix on record yet. Sources: cert.
cert

全誼校務資訊系統 - SQL injection-TWCERT/CC台灣電腦網路危機處理暨協調中心|企業資安通報協處|資安情資分享|漏洞通報|資安聯盟|資安電子報

https://www.twcert.org.tw/tw/cp-132-3530-53d32-1.html
generic

CHT Security Red Team Discovered Several Vulnerabilities in Well-Known School Management System｜中華資安國際 CHT Security Co., Ltd.

https://www.chtsecurity.com/news/be93c576-e421-489f-9453-a462bdd4c90d

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 24× 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 159 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2020-10505?
CVE-2020-10505 is a critical vulnerability published on April 15, 2020. The School Manage System before 2020, developed by ALLE INFORMATION CO., LTD., contains a vulnerability of SQL Injection, an attacker can use a union based injection query string to get databases schema and username/password.
When was CVE-2020-10505 disclosed?
CVE-2020-10505 was first published on April 15, 2020, 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-2020-10505 actively exploited?
CVE-2020-10505 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.1% probability of exploitation in the next 30 days (63rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2020-10505?
CVE-2020-10505 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2020-10505?
No fix for CVE-2020-10505 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

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