How severe is CVE-2021-36030?

CVE-2021-36030 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2021-36030 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36030?

CVE-2021-36030 primarily affects Adobe Adobe Commerce. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-36030?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-36030 published?

CVE-2021-36030 was published on 2021-09-01 and last updated on 2026-06-17.

CVE-2021-36030

CVE-2021-36030 is a high-severity vulnerability in Adobe Adobe Commerce with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Adobe Adobe Commerce
Published: 2021-09-01
Last modified: 2026-06-17

Description

Magento Commerce versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an improper input validation vulnerability during the checkout process. An unauthenticated attacker can leverage this vulnerability to alter the price of items.

Frequently asked questions

What is CVE-2021-36030?: Magento Commerce versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an improper input validation vulnerability during the checkout process. An unauthenticated attacker can leverage this vulnerability to alter the price of items.
How severe is CVE-2021-36030?: CVE-2021-36030 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2021-36030 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36030?: CVE-2021-36030 primarily affects Adobe Adobe Commerce. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-36030?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-36030 published?: CVE-2021-36030 was published on 2021-09-01 and last updated on 2026-06-17.

References

https://helpx.adobe.com/security/products/magento/apsb21-64.html

Affected products (4)

cpe:2.3:a:adobe:adobe_commerce:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:adobe_commerce:2.4.2:p1:*:*:*:*:*:*
cpe:2.3:a:adobe:magento_open_source:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:magento_open_source:2.4.2:p1:*:*:*:*:*:*

More vulnerabilities in Adobe Adobe Commerce

CVE-2021-36042 — Critical (CVSS 9.1): Magento Commerce versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an…
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