CVE-2021-21395

Name: CVE-2021-21395
Creator: NVD / NIST
Published: 2023-01-27T16:15:08.323+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2021-21395 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

EPSS Probability

0.38%

30.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Openmage	Magento	< 19.4.22
Openmage	Magento	>= 20.0.0, < 20.0.19

References

https://github.com/OpenMage/magento-lts/security/advisories/GHSA-r3c9-9j5q-pwv4Third Party Advisory
https://hackerone.com/reports/1086752Exploit, Third Party Advisory
https://packagist.org/packages/openmage/magento-ltsThird Party Advisory
https://github.com/OpenMage/magento-lts/security/advisories/GHSA-r3c9-9j5q-pwv4Third Party Advisory
https://hackerone.com/reports/1086752Exploit, Third Party Advisory
https://packagist.org/packages/openmage/magento-ltsThird Party Advisory

Timeline

Published: Jan 27, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21395?

How severe is CVE-2021-21395?

CVE-2021-21395 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21395?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-21395?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST