CVE-2021-39864 | Adobe Commerce Cross-Site Request Forgery (CSRF) Could Lead To Unauthorized Cart Addition

Adobe Commerce versions 2.4.2-p2 (and earlier), 2.4.3 (and earlier) and 2.3.7p1 (and earlier) are affected by a cross-site request forgery (CSRF) vulnerability via a Wishlist Share Link. Successful exploitation could lead to unauthorized addition to customer cart by an unauthenticated attacker. Access to the admin console is not required for successful exploitation.

Published: 2021-10-15 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-39864 is rated Moderate Risk (51.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.57%). 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-2021-39864

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 2026-06-15 1.00% 1.57% +0.57%
2 2026-03-02 0.86% 1.00% +0.13%
3 2025-11-21 — 0.86% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-39864

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/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:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
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:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/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:M)
Exploitation needs some favorable conditions, but not exceptional ones.
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.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2021-39864

GitHub Security Advisory for CVE-2021-39864

GHSA-94wq-87g6-8h77 · Severity: medium · Ecosystem: composer — Magento Open Source allows Cross-Site Request Forgery (CSRF)

Affected software / configurations for CVE-2021-39864

Vendor Product Version Raw CPE
adobe commerce <= 2.3.7 cpe:2.3:a:adobe:commerce:*:*:*:*:*:*:*:*
adobe commerce 2.3.7 cpe:2.3:a:adobe:commerce:2.3.7:p1:*:*:*:*:*:*
adobe commerce 2.4.2 cpe:2.3:a:adobe:commerce:2.4.2:*:*:*:*:*:*:*
adobe commerce 2.4.2 cpe:2.3:a:adobe:commerce:2.4.2:p1:*:*:*:*:*:*
adobe commerce 2.4.2 cpe:2.3:a:adobe:commerce:2.4.2:p2:*:*:*:*:*:*
adobe commerce 2.4.3 cpe:2.3:a:adobe:commerce:2.4.3:*:*:*:*:*:*:*
adobe magento_open_source <= 2.3.7 cpe:2.3:a:adobe:magento_open_source:*:*:*:*:*:*:*:*
adobe magento_open_source 2.3.7 cpe:2.3:a:adobe:magento_open_source:2.3.7:p1:*:*:*:*:*:*
adobe magento_open_source 2.4.2 cpe:2.3:a:adobe:magento_open_source:2.4.2:*:*:*:*:*:*:*
adobe magento_open_source 2.4.2 cpe:2.3:a:adobe:magento_open_source:2.4.2:p1:*:*:*:*:*:*
adobe magento_open_source 2.4.2 cpe:2.3:a:adobe:magento_open_source:2.4.2:p2:*:*:*:*:*:*
adobe magento_open_source 2.4.3 cpe:2.3:a:adobe:magento_open_source:2.4.3:*:*:*:*:*:*:*

References for CVE-2021-39864

cvelogic Threat Intelligence