CVE-2020-10221

HIGHNVD 8.89.0▲Trending — 4 sources updated this weekExploited in the wild

8.8

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)
EPSS: 99.7%
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.

CWE-78OS Command Injection

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 03:27 UTCEG score recompute
2026-06-05 03:27 UTCGHSA enrichment
2026-06-04 23:08 UTCEG score recompute
2026-06-04 23:08 UTCGHSA enrichment
2026-06-04 18:49 UTCEG score recompute
2026-06-04 18:49 UTCGHSA enrichment
2026-06-04 14:30 UTCEG score recompute
2026-06-04 14:30 UTCGHSA enrichment
2026-06-04 10:11 UTCEG score recompute
2026-06-04 10:11 UTCGHSA enrichment
2026-06-04 05:52 UTCEG score recompute
2026-06-04 05:52 UTCGHSA enrichment
2026-06-04 01:33 UTCEG score recompute
2026-06-04 01:33 UTCGHSA enrichment
2026-06-03 21:14 UTCEG score recompute
2026-06-03 21:14 UTCGHSA enrichment
2026-06-03 19:09 UTCkev_newly_listed
2026-06-03 16:55 UTCEG score recompute
2026-06-03 16:55 UTCGHSA enrichment
2026-06-03 12:36 UTCEG score recompute

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 ↗

Frequently asked(6)

What is CVE-2020-10221?

CVE-2020-10221 is a high 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-10221

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Is Your Infrastructure Affected by CVE-2020-10221?

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CVE-2020-10221

📅 Published

🔄 Last Modified

📋 Advisory Details (2)