CVE-2021-20717 json
EC-CUBE Cross-site scripting vulnerability
published 2021-05-10 5 y ago modified 2026-06-17 4 mo ago also GHSA-c8mx-43cq-993w , EUVD-2022-3535
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.3%
- EPSS 2.3% chance of exploitation in 30 days, percentile 83%
- public exploits
- 0
- none known
Summary
Cross-site scripting vulnerability in EC-CUBE 4.0.0 to 4.0.5 allows a remote attacker to inject a specially crafted script in the specific input field of the EC web site which is created using EC-CUBE. As a result, it may lead to an arbitrary script execution on the administrator's web browser.
Patch / fix
- ec-cube ec-cube 4.0.5
Exploit prediction
2.31% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| 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 |
| GitHub | 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 | ec-cube/ec-cube | >=4.0.0, <=4.0.5 |
no fix listed |
Affected products
- EC-CUBE CO.,LTD. EC-CUBE
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
ec-cube.net
/news/detail.php?news_id=384
web, patch, vendor-advisory
-
ec-cube.net
/news/detail.php?news_id=383
web, patch, vendor-advisory
-
jvn.jp
/en/jp/JVN97554111/index.html
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-20717
advisory
-
github.com
/EC-CUBE/ec-cube
package
Sources
- CVE List CVE-2021-20717
- GitHub Advisory GHSA-c8mx-43cq-993w
- NVD CVE-2021-20717
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