GHSA-jc55-crg7-pr35 · Severity: medium · Ecosystem: composer — EC-CUBE Improper access control in Management screen
Improper access control in Management screen of EC-CUBE 2 series 2.11.2 to 2.17.1 allows a remote authenticated attacker to bypass access restriction and to alter System settings via unspecified vectors.
Conclusion & alert: CVE-2021-20841 is rated High Exploit Risk (65.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.28%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.07% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.20% | 1.28% | +1.07% |
| 2 | 2025-03-17 | 0.09% | 0.20% | +0.11% |
| 3 | 2023-03-07 | — | 0.09% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 4.0 | 2.0 | MEDIUM |
|
8.0 | 2.9 | [email protected] |
GHSA-jc55-crg7-pr35 · Severity: medium · Ecosystem: composer — EC-CUBE Improper access control in Management screen
| URL | Tags |
|---|---|
| https://jvn.jp/en/jp/JVN75444925/index.html | Third Party Advisory |
| https://www.ec-cube.net/info/weakness/20211111/ | Exploit Patch Vendor Advisory |