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Vulnerability details: VCID-1q79-sxzp-zker
Vulnerability ID VCID-1q79-sxzp-zker
Aliases CVE-2021-20682
GHSA-g39q-f4rm-85x4
Summary OS Command Injection baserCMS allows a remote attacker with an administrative privilege to execute arbitrary OS commands via unspecified vectors.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.02357 https://api.first.org/data/v1/epss?cve=CVE-2021-20682
epss 0.02357 https://api.first.org/data/v1/epss?cve=CVE-2021-20682
cvssv3.1 7.2 https://basercms.net/security/JVN64869876
generic_textual HIGH https://basercms.net/security/JVN64869876
cvssv3.1 7.2 https://jvn.jp/en/jp/JVN64869876/index.html
generic_textual HIGH https://jvn.jp/en/jp/JVN64869876/index.html
cvssv3.1 7.2 https://nvd.nist.gov/vuln/detail/CVE-2021-20682
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2021-20682
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-20682
https://basercms.net/security/JVN64869876
https://jvn.jp/en/jp/JVN64869876/index.html
CVE-2021-20682 https://nvd.nist.gov/vuln/detail/CVE-2021-20682
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://basercms.net/security/JVN64869876
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://jvn.jp/en/jp/JVN64869876/index.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-20682
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.8521
EPSS Score 0.02357
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:20:57.183320+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/baserproject/basercms/CVE-2021-20682.yml 38.6.0