CVE intelligence and bounded remediation
CVE-2021-21427 — Magento-lts is a long-term support alternative to Magento Community Edition (CE)
Magento-lts is a long-term support alternative to Magento Community Edition (CE). A vulnerability in magento-lts versions before 19.4.13 and 20.0.9 potentially allows an administrator unauthorized access to restricted resources. This is a backport of CVE-2021-21024. The vulnerability is patched in versions 19.4.13 and 20.0.9.
- Severity
- Critical
- CVSS
- 9.1 (3.1)
- Published
- 2021-04-21
- CISA KEV
- Not currently listed
- Ecosystem
- software/application
- Weaknesses
- CWE-89
Affected products
- openmage / magento
Showing 1 representative product identities from 2 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.
Matched remediation archetype
SQL and data-query injection
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Check exposure
- Trace request, message, file, and stored values into SQL, ORM query fragments, filters, sort expressions, and other data-query languages.
- Inventory database roles, reachable schemas, multi-tenant boundaries, and whether stacked or administrative operations are enabled.
- Check both direct queries and second-order use of previously stored values.
Remediate safely
- Use parameterized queries or safe query builders for all values; map identifiers and operators through explicit allowlists.
- Remove raw query concatenation and give the application account only the tables and operations it requires.
- Update affected data-access components and add regression tests for query structure preservation with inert edge-case inputs.
Authoritative sources
Complete CVE record and remediation plan
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