CVE-2021-20750 json
EC-CUBE Cross-site scripting vulnerability
published 5y ago modified 4mo ago also GHSA-vrpv-26fm-7vf7 , EUVD-2022-5422
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
Cross-site scripting vulnerability in EC-CUBE EC-CUBE 3.0.0 to 3.0.18-p2 (EC-CUBE 3 series) and EC-CUBE 4.0.0 to 4.0.5-p1 (EC-CUBE 4 series) allows a remote attacker to inject an arbitrary script by leading an administrator or a user to a specially crafted page and to perform a specific operation.
Patch / fix
- packagist ec-cube/ec-cube 4.0.6
- ec-cube ec-cube 3.0.18, 4.0.5
Is CVE-2021-20750 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.56% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).
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 | >=3.0.0, <=3.0.18-p2 >=4.0.0, <4.0.6 |
4.0.6 |
Affected products
- EC-CUBE CO.,LTD. EC-CUBE
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
ec-cube.net
/info/weakness/weakness.php?id=79
web, vendor-advisory
-
ec-cube.net
/info/weakness/weakness.php?id=78
web, vendor-advisory
-
jvn.jp
/en/jp/JVN95292458/index.html
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-20750
advisory
-
github.com
/EC-CUBE/ec-cube
package
Sources
- CVE List CVE-2021-20750
- GitHub Advisory GHSA-vrpv-26fm-7vf7
- NVD CVE-2021-20750
Fencer Intel 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.