CVE-2021-36021: Magento Commerce CMS Page Improper Input Validation Could Lead To Remote Code Execution

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-09-06 · updated 2026-06-17
Weakness: CWE-20

Description

Magento 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 within the CMS page scheduled update feature. An authenticated attacker with administrative privilege could leverage this vulnerability to achieve remote code execution on the system.

Affected products

Adobe Magento Commerce: before 2.3.7; from 2.4.0 before 2.4.2; 2.3.7, 2.4.2, 2.4.2-p1 — fixed in 2.3.7, 2.4.2

How to fix

Upgrade to a fixed version: Adobe Magento Commerce 2.3.7, 2.4.2. Check the vendor advisory for mitigations.

References

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