GHSA-2655-q453-22f9 · Severity: high · Ecosystem: pip — Django Allows Arbitrary URL Generation
The django.http.HttpRequest.get_host function in Django 1.3.x before 1.3.4 and 1.4.x before 1.4.2 allows remote attackers to generate and display arbitrary URLs via crafted username and password Host header values.
Conclusion & alert: CVE-2012-4520 is rated Moderate Risk (55.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.89%). 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 | 2025-11-30 | 4.44% | 3.89% | -0.55% |
| 2 | 2025-03-30 | 3.19% | 4.44% | +1.25% |
| 3 | 2025-03-29 | — | 3.19% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.4 | 2.0 | MEDIUM |
|
10.0 | 4.9 | [email protected] |
GHSA-2655-q453-22f9 · Severity: high · Ecosystem: pip — Django Allows Arbitrary URL Generation
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2012-4520 not yet assigned priority: Debian including 1 source packages (python-django), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2012-4520 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2012-4520 |
ubuntu
|
medium | CVE-2012-4520 medium priority: Ubuntu including 1 source packages (python-django), 6 status rows across 6 suites (hardy, lucid, oneiric, precise, quantal, upstream): released 5, ignored 1. | https://ubuntu.com/security/CVE-2012-4520 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| djangoproject | django | 1.3 | cpe:2.3:a:djangoproject:django:1.3:*:*:*:*:*:*:* |
| djangoproject | django | 1.3 | cpe:2.3:a:djangoproject:django:1.3:alpha1:*:*:*:*:*:* |
| djangoproject | django | 1.3 | cpe:2.3:a:djangoproject:django:1.3:beta1:*:*:*:*:*:* |
| djangoproject | django | 1.3.1 | cpe:2.3:a:djangoproject:django:1.3.1:*:*:*:*:*:*:* |
| djangoproject | django | 1.3.2 | cpe:2.3:a:djangoproject:django:1.3.2:*:*:*:*:*:*:* |
| djangoproject | django | 1.3.3 | cpe:2.3:a:djangoproject:django:1.3.3:*:*:*:*:*:*:* |
| djangoproject | django | 1.4 | cpe:2.3:a:djangoproject:django:1.4:*:*:*:*:*:*:* |
| djangoproject | django | 1.4.1 | cpe:2.3:a:djangoproject:django:1.4.1:*:*:*:*:*:*:* |