Home/CVE/Cross-site scripting vulnerability in EC-CUBE EC-CUBE 4.0.0 to 4.0.5-p1 (EC-CUBE 4 series) allows a remote attacker to i
CVE

CVE-2021-20751

Cross-site scripting vulnerability in EC-CUBE EC-CUBE 4.0.0 to 4.0.5-p1 (EC-CUBE 4 series) allows a remote attacker to i

Cross-site scripting vulnerability in 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.

MEDIUM · CVSS 6.1 EPSS 0.00591
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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Affected Products & Versions

2
ec-cube>= 4.0.0 and < 4.0.5
ec-cubeall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Packagist ec-cube/ec-cube MEDIUM fixed in 4.0.6
▣

Scoring & Timeline

6.1
MEDIUM · CVSS v3.1 · vultures@jpcert.or.jp
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD28 Jun 2021 · 01:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://jvn.jp/en/jp/JVN95292458/index.htmlThird Party Advisory
https://www.ec-cube.net/info/weakness/weakness.php?id=78Vendor Advisory
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