engine/lib/users.php in Elgg before 1.8.5 does not properly specify permissions for the useradd action, which allows remote attackers to create arbitrary accounts.
Conclusion & alert: CVE-2012-6562 is rated Moderate Risk (48.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.48%). 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 | 2025-03-17 | 0.81% | 0.48% | -0.34% |
| 2 | 2023-03-07 | 1.21% | 0.81% | -0.40% |
| 3 | 2022-02-04 | — | 1.21% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| elgg | elgg | <= 1.8.4 | cpe:2.3:a:elgg:elgg:*:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.0 | cpe:2.3:a:elgg:elgg:1.7.0:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.1 | cpe:2.3:a:elgg:elgg:1.7.1:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.2 | cpe:2.3:a:elgg:elgg:1.7.2:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.3 | cpe:2.3:a:elgg:elgg:1.7.3:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.4 | cpe:2.3:a:elgg:elgg:1.7.4:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.5 | cpe:2.3:a:elgg:elgg:1.7.5:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.6 | cpe:2.3:a:elgg:elgg:1.7.6:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.7 | cpe:2.3:a:elgg:elgg:1.7.7:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.8 | cpe:2.3:a:elgg:elgg:1.7.8:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.9 | cpe:2.3:a:elgg:elgg:1.7.9:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.10 | cpe:2.3:a:elgg:elgg:1.7.10:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.11 | cpe:2.3:a:elgg:elgg:1.7.11:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.12 | cpe:2.3:a:elgg:elgg:1.7.12:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.13 | cpe:2.3:a:elgg:elgg:1.7.13:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.14 | cpe:2.3:a:elgg:elgg:1.7.14:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.15 | cpe:2.3:a:elgg:elgg:1.7.15:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.16 | cpe:2.3:a:elgg:elgg:1.7.16:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.17 | cpe:2.3:a:elgg:elgg:1.7.17:*:*:*:*:*:*:* |
| elgg | elgg | 1.7.18 | cpe:2.3:a:elgg:elgg:1.7.18:*:*:*:*:*:*:* |
| elgg | elgg | 1.8.0.1 | cpe:2.3:a:elgg:elgg:1.8.0.1:*:*:*:*:*:*:* |
| elgg | elgg | 1.8.1 | cpe:2.3:a:elgg:elgg:1.8.1:*:*:*:*:*:*:* |
| elgg | elgg | 1.8.3 | cpe:2.3:a:elgg:elgg:1.8.3:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://blog.elgg.org/pg/blog/evan/read/209/elgg-185-released | Vendor Advisory |
| http://elgg.org/getelgg.php?forward=elgg-1.8.5.zip | Patch Vendor Advisory |
| http://secunia.com/advisories/49129 | Vendor Advisory |
| http://www.securityfocus.com/bid/53623 | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/75757 |