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CVE-2012-4520

23
FAUCET Score

CVE-2012-4520 describes a vulnerability in Django versions 1.3.x before 1.3.4 and 1.4.x before 1.4.2, where the django.http.HttpRequest.get_host function allows remote attackers to generate and display arbitrary URLs through crafted Host header values. With a CVSS score of 6.4, this vulnerability is of medium severity, indicating potential for partial confidentiality and integrity impact with low attack complexity and no authentication required. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.3CPE matchmatch criteria
cpe:2.3:a:djangoproject:django:1.3:*:*:*:*:*:*:*
1.3CPE matchmatch criteria
cpe:2.3:a:djangoproject:django:1.3:alpha1:*:*:*:*:*:*
1.3CPE matchmatch criteria
cpe:2.3:a:djangoproject:django:1.3:beta1:*:*:*:*:*:*
1.3.1CPE matchmatch criteria
cpe:2.3:a:djangoproject:django:1.3.1:*:*:*:*:*:*:*
1.3.2CPE matchmatch criteria
cpe:2.3:a:djangoproject:django:1.3.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.4MEDIUM

AV:N/AC:L/Au:N/C:P/I:P/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.64%
Probability of exploitation in next 30 days
EPSS Percentile
88.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0364 is in the 85th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

pippatch availablevia ghsa
Product: djangoFixed in: 1.3.4
pippatch availablevia ghsa
Product: djangoFixed in: 1.4.2
redhatno patchvia redhat_api
Product: Red Hat Subscription Asset ManagerFixed in: Django

Vendor Advisories (2)

pipGHSA-2655-q453-22f9high

Django Allows Arbitrary URL Generation

May 17, 2022
redhatCVE-2012-4520Moderate

Django: Host header poisoning vulnerability

Oct 17, 2012

References

bugs.debian.org / cgi-bin/bugreport.cgi
lists.fedoraproject.org / pipermail/package-announce/2012-October/090666.html
lists.fedoraproject.org / pipermail/package-announce/2012-October/090904.html
lists.fedoraproject.org / pipermail/package-announce/2012-October/090970.html
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/51033
Vendor Advisory
secunia.com / advisories/51314
Vendor Advisory
securitytracker.com / id
github.com / django/django/commit/92d3430f12171f16f566c9050c40feefb830a4a3
github.com / django/django/commit/9305c0e12d43c4df999c3301a1f0c742264a657e
github.com / django/django/commit/b45c377f8f488955e0c7069cad3f3dd21910b071
djangoproject.com / weblog/2012/oct/17/security
PatchVendor Advisory
ubuntu.com / usn/usn-1632-1
ubuntu.com / usn/usn-1757-1
debian.org / security/2013/dsa-2634
openwall.com / lists/oss-security/2012/10/30/4
osvdb.org / 86493