CVE-2021-21029 json
Magento Commerce Reflected Cross-site Scripting Vulnerability Could Lead To Arbitrary JavaScript Execution
published 2021-02-11 5 y ago modified 2026-09-08 2 mo ago also BIT-magento-2021-21029 , EUVD-2022-4456 , GHSA-jwxh-wj79-ccm6
- cvss
- 4.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 84.6%
- EPSS 84.6% chance of exploitation in 30 days, percentile 99.7%
- public exploits
- 0
- none known
Summary
Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) are affected by a Reflected Cross-site Scripting vulnerability via 'file' parameter. Successful exploitation could lead to arbitrary JavaScript execution in the victim's browser. Access to the admin console is required for successful exploitation.
Patch / fix
- packagist magento/community-edition 2.3.6-p1, 2.4.2
- bitnami magento 2.3.6, 2.4.1
- magento magento 2.3.6
Exploit prediction
84.64% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| OSV | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | magento/community-edition | <2.3.6-p1 >=2.4.0, <2.4.2 |
2.3.6-p1 2.4.2 |
| bitnami | magento | <2.3.6 >=2.4.0, <2.4.1 |
2.3.6 2.4.1 |
Affected products
- Adobe Magento Commerce
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/magento/magento2/commit/a2eb7e29ea92a8bbc86c3b6b81b59d8533088497
web
-
github.com
/magento/magento2/commit/a349e022c9ae070e7da262021f9ef182105aa00b
web
-
helpx.adobe.com
/security/products/magento/apsb21-08.html
web, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-21029
advisory, web
-
github.com
/magento/magento2
package
Sources
- CVE List CVE-2021-21029
- GitHub Advisory GHSA-jwxh-wj79-ccm6
- NVD CVE-2021-21029
- OSV BIT-magento-2021-21029
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