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 — 4 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: 37%CVSS: 8.8Exploit: cisa kev · ssvc active · epss top5pct · public exploitExposed: 0

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

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
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
37%
EPSS %ILE
98%
KEV
⚠ Exploited

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 40× in last 7d / 203× 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 423 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

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 ↗

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 in the National Vulnerability Database 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 patching attention.
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.
Which products are affected by CVE-2020-10221?
CVE-2020-10221 affects rConfig rConfig. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2020-10221?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-10221, 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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