CVE-2021-28585 | Magento Commerce improper input validation in customer customer webapi

Magento versions 2.4.2 (and earlier), 2.4.1-p1 (and earlier) and 2.3.6-p1 (and earlier) are affected by an Improper input validation vulnerability in the New customer WebAPI.Successful exploitation could allow an attacker to send unsolicited spam e-mails.

Published: 2021-06-28 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-28585 is rated Moderate Risk (41.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.35%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-28585

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-03 0.26% 0.35% +0.09%
2 2025-11-01 0.35% 0.26% -0.09%
3 2025-03-30 — 0.35% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-28585

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2021-28585

GitHub Security Advisory for CVE-2021-28585

GHSA-c38m-9668-6j2w · Severity: medium · Ecosystem: composer — Magento Improper input validation vulnerability

Affected software / configurations for CVE-2021-28585

Vendor Product Version Raw CPE
magento magento < 2.3.6 cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*
magento magento < 2.3.6 cpe:2.3:a:magento:magento:*:*:*:*:open_source:*:*:*
magento magento 2.3.6 cpe:2.3:a:magento:magento:2.3.6:-:*:*:commerce:*:*:*
magento magento 2.3.6 cpe:2.3:a:magento:magento:2.3.6:-:*:*:open_source:*:*:*
magento magento 2.3.6 cpe:2.3:a:magento:magento:2.3.6:p1:*:*:commerce:*:*:*
magento magento 2.3.6 cpe:2.3:a:magento:magento:2.3.6:p1:*:*:open_source:*:*:*
magento magento 2.4.1 cpe:2.3:a:magento:magento:2.4.1:-:*:*:commerce:*:*:*
magento magento 2.4.1 cpe:2.3:a:magento:magento:2.4.1:-:*:*:open_source:*:*:*
magento magento 2.4.1 cpe:2.3:a:magento:magento:2.4.1:p1:*:*:commerce:*:*:*
magento magento 2.4.1 cpe:2.3:a:magento:magento:2.4.1:p1:*:*:open_source:*:*:*
magento magento 2.4.2 cpe:2.3:a:magento:magento:2.4.2:*:*:*:commerce:*:*:*
magento magento 2.4.2 cpe:2.3:a:magento:magento:2.4.2:*:*:*:open_source:*:*:*

References for CVE-2021-28585

cvelogic Threat Intelligence