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CVE-2021-21023

17
FAUCET Score

CVE-2021-21023 is a stored cross-site scripting (XSS) vulnerability affecting Adobe Magento versions 2.4.1 and earlier, 2.4.0-p1 and earlier, and 2.3.6 and earlier. This medium-severity vulnerability (CVSS 4.8) requires an attacker to have administrative console access to inject malicious JavaScript, which could then execute in a victim's browser. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.3.6CPE matchmatch criteria
cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*
< 2.3.6CPE matchmatch criteria
cpe:2.3:a:magento:magento:*:*:*:*:open_source:*:*:*
2.3.6CPE matchmatch criteria
cpe:2.3:a:magento:magento:2.3.6:-:*:*:commerce:*:*:*
2.3.6CPE matchmatch criteria
cpe:2.3:a:magento:magento:2.3.6:-:*:*:open_source:*:*:*
2.4.0CPE matchmatch criteria
cpe:2.3:a:magento:magento:2.4.0:-:*:*:commerce:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.8MEDIUM

CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.7
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.61%
Probability of exploitation in next 30 days
EPSS Percentile
73.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0161 is in the 96th percentile among its peer group of 4,937 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

composerpatch availablevia ghsa
Product: magento/community-editionFixed in: 2.3.6
composerpatch availablevia ghsa
Product: magento/community-editionFixed in: 2.4.1-p1
adobevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-h5rm-m772-6qcxmedium

Magento stored cross-site scripting vulnerability in the admin console

May 24, 2022

References

helpx.adobe.com / security/products/magento/apsb21-08.html
Vendor Advisory