Unspecified vulnerability in EPiServer CMS 5 and 6 through 6R2, in certain configurations using Forms Authentication, allows remote authenticated users to obtain WebAdmins access by leveraging Edit Mode privileges, a different vulnerability than CVE-2011-3416 and CVE-2011-3417.
Conclusion & alert: CVE-2012-1031 is rated Moderate Risk (46.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.12%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 0.37% | 1.12% | +0.74% |
| 2 | 2025-03-17 | 0.34% | 0.37% | +0.03% |
| 3 | 2023-03-07 | — | 0.34% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.0 | 2.0 | MEDIUM |
|
6.8 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| episerver | episerver_cms | 5.1.422.4 | cpe:2.3:a:episerver:episerver_cms:5.1.422.4:*:*:*:*:*:*:* |
| episerver | episerver_cms | 5.1.422.122 | cpe:2.3:a:episerver:episerver_cms:5.1.422.122:*:*:*:*:*:*:* |
| episerver | episerver_cms | 5.1.422.256 | cpe:2.3:a:episerver:episerver_cms:5.1.422.256:*:*:*:*:*:*:* |
| episerver | episerver_cms | 5.1.422.267 | cpe:2.3:a:episerver:episerver_cms:5.1.422.267:*:*:*:*:*:*:* |
| episerver | episerver_cms | 5.2.375.7 | cpe:2.3:a:episerver:episerver_cms:5.2.375.7:*:*:*:*:*:*:* |
| episerver | episerver_cms | 5.2.375.133 | cpe:2.3:a:episerver:episerver_cms:5.2.375.133:*:*:*:*:*:*:* |
| episerver | episerver_cms | 5.2.375.236 | cpe:2.3:a:episerver:episerver_cms:5.2.375.236:*:*:*:*:*:*:* |
| episerver | episerver_cms | 6.0.530.0 | cpe:2.3:a:episerver:episerver_cms:6.0.530.0:*:*:*:*:*:*:* |
| episerver | episerver_cms | 6.1.379.0 | cpe:2.3:a:episerver:episerver_cms:6.1.379.0:*:*:*:*:*:*:* |