Magento stored cross-site scripting vulnerability

published 2020-06-26 6 y ago modified 2026-09-08 2 mo ago also BIT-magento-2020-9577 , EUVD-2022-2749 , GHSA-689w-2f93-2x67

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.5%; EPSS 1.5% chance of exploitation in 30 days, percentile 74%
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 stored cross-site scripting vulnerability. Successful exploitation could lead to sensitive information disclosure .

Patch / fix

fixed in 3

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

Exploit prediction

1.50% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
GitHub	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N
OSV	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
packagist	magento/community-edition	<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

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

helpx.adobe.com /security/products/magento/apsb20-22.html
web, vendor-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2020-9577
advisory, web

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