Magento Security mitigation bypass vulnerability

published 2020-06-26 6 y ago modified 2026-09-08 2 mo ago also BIT-magento-2020-9580 , EUVD-2022-4260 , GHSA-j2jp-58gv-g2pg

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 5.0%; EPSS 5.0% chance of exploitation in 30 days, percentile 92%
public exploits: 0; none known

Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have a security mitigation bypass vulnerability. Successful exploitation could lead to arbitrary code execution.

Patch / fix

fixed in 3 links 1

packagist magento/community-edition 2.3.4-p2
packagist magento/core 1.9.4.5
bitnami magento 2.2.12, 2.3.5

github.com/magento/magento2@52d92db commit

Exploit prediction

5.04% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
GitHub	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P
OSV	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
packagist	magento/community-edition	<=2.2.11 >=2.3.0, <2.3.4-p2	2.3.4-p2
packagist	magento/core	<1.9.4.5	1.9.4.5
packagist	magento/project-community-edition	<=2.0.2	no fix listed
bitnami	magento	>=2.2.0, <2.2.12 >=2.3.0, <2.3.5	2.2.12 2.3.5

Affected products

Adobe Magento

References

github.com /magento/magento2/commit/52d92dbd07f09620d23693ba0c4d4bdb4ba09916
web
helpx.adobe.com /security/products/magento/apsb20-22.html
web, vendor-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2020-9580
advisory, web
github.com /magento/magento2
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary