Magneto LTS (Long Term Support) is a community developed alternative to the Magento CE official releases. Versions prior to 19.4.22 and 20.0.19 are vulnerable to Cross-Site Request Forgery. The password reset form is vulnerable to CSRF between the time the reset password link is clicked and user submits new password. This issue is patched in versions 19.4.22 and 20.0.19. There are no workarounds.
CVE-2021-21395
This medium-severity CVE scores 4.2 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 69% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.2
- EG Score
- 4.2(medium)
- EG Risk
- —
- EPSS
- 30.9%
- KEV
- Not listed
Published
January 27, 2023
Last Modified
November 21, 2024
References (6)
- security-advisories@githubhttps://github.com/OpenMage/magento-lts/security/advisories/GHSA-r3c9-9j5q-pwv4
- security-advisories@githubhttps://hackerone.com/reports/1086752
- security-advisories@githubhttps://packagist.org/packages/openmage/magento-lts
- af854a3a-2127-422b-91ae-364da2661108https://github.com/OpenMage/magento-lts/security/advisories/GHSA-r3c9-9j5q-pwv4
- af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/1086752
- af854a3a-2127-422b-91ae-364da2661108https://packagist.org/packages/openmage/magento-lts
Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openmage/magento-lts | v20.0.0 ... v20.0.8 (18 versions) | 20.0.19 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 48× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 22:43 UTCEG score recompute
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Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2021-21395?
When was CVE-2021-21395 disclosed?
Is CVE-2021-21395 actively exploited?
What is the CVSS score of CVE-2021-21395?
How do I remediate CVE-2021-21395?
Dependency Blast Radius
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