CVE-2020-10221

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 3 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 77%CVSS: 8.8Exploit: cisa kev · ssvc active · epss top5pct · epss high · public exploitExposed services: Not assessed

A fix is available — apply it.

lib/ajaxHandlers/ajaxAddTemplate.php in rConfig through 3.94 allows remote attackers to execute arbitrary OS commands via shell metacharacters in the fileName POST parameter.

CVSS v3
8.8
EG Score
9.0CRITICALhigh confidence
EG Risk
81
EG Risk 81/100CISA 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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Attend at medium and Act at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.
EPSS PROB
77%
EPSS %ILE
99th
KEV
⚠ Exploited

CISA SSVCTrack at low, Attend at medium and Act at high mission impact.

A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.

Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). 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

March 8, 2020

Last Modified

November 7, 2025

Advisory Details (2)

Auto-updated Jun 1, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-10221
generic🔴 Active Exploitation

CWE - CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (4.20)

https://cwe.mitre.org/data/definitions/78.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 45× in last 7d / 213× 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 923 total refreshes for this CVE.

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

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-48207
    First seen Mar 12, 2020

    rConfig 3.93 - 'ajaxAddTemplate.php' Authenticated Remote Code Execution

    Open source ↗
  • Nucleihttp/cves/2020/CVE-2020-10221.yaml
    First seen Jan 1, 2020

    rConfig <= 3.9.4 - Authenticated OS Command Injection

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2020-10221?
CVE-2020-10221 is a critical vulnerability published on March 8, 2020. lib/ajaxHandlers/ajaxAddTemplate.php in rConfig through 3.94 allows remote attackers to execute arbitrary OS commands via shell metacharacters in the fileName POST parameter.
When was CVE-2020-10221 disclosed?
CVE-2020-10221 was first published on March 8, 2020, with the most recent update on November 7, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-10221 actively exploited?
Yes. CISA added CVE-2020-10221 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting rConfig rConfig. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2020-10221?
CVE-2020-10221 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
Which products are affected by CVE-2020-10221?
CVE-2020-10221 affects rConfig rConfig.
How do I remediate CVE-2020-10221?
A fix for CVE-2020-10221 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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