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Vulnerability record · CVE-2012-3540 · published 5 September 2012

CVE-2012-3540: Openstack horizon improper input validation vulnerability

Openstack · Horizon

Open redirect vulnerability in views/auth_forms.py in OpenStack Dashboard (Horizon) Essex (2012.1) allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the next parameter to auth/login/. NOTE: this issue was originally assigned CVE-2012-3542 by mistake.

5.8 CVSS 2.0 Medium EPSS 2.9% · top 12.8% CWE-20 · Improper input validation
5.8CVSS 2.0 base score
2.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
20References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

Open redirect vulnerability in views/auth_forms.py in OpenStack Dashboard (Horizon) Essex (2012.1) allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the next parameter to auth/login/. NOTE: this issue was originally assigned CVE-2012-3542 by mistake.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://secunia.com/advisories/50480 Vendor Advisory
http://www.openwall.com/lists/oss-security/2012/08/30/4
http://www.openwall.com/lists/oss-security/2012/08/30/5
http://www.securityfocus.com/bid/55329
http://www.ubuntu.com/usn/USN-1565-1
https://bugs.launchpad.net/horizon/+bug/1039077
https://exchange.xforce.ibmcloud.com/vulnerabilities/78196
https://github.com/openstack/horizon/commit/35eada8a27323c0f83c400177797927aba6bc99b ExploitPatch
https://lists.launchpad.net/openstack/msg16278.html
https://lists.launchpad.net/openstack/msg16281.html
http://secunia.com/advisories/50480 Vendor Advisory
http://www.openwall.com/lists/oss-security/2012/08/30/4
http://www.openwall.com/lists/oss-security/2012/08/30/5
http://www.securityfocus.com/bid/55329
http://www.ubuntu.com/usn/USN-1565-1
https://bugs.launchpad.net/horizon/+bug/1039077
https://exchange.xforce.ibmcloud.com/vulnerabilities/78196
https://github.com/openstack/horizon/commit/35eada8a27323c0f83c400177797927aba6bc99b ExploitPatch
https://lists.launchpad.net/openstack/msg16278.html
https://lists.launchpad.net/openstack/msg16281.html

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

6.8CVE-2026-55748Openstack horizon os command injection vulnerabilityOpenStack Horizon before 25.7.4 produces scripts for OpenStack RC file downloading that may have a crafted project name with shell metacharacters. NO…EPSS 0.25%6.8CVE-2012-2144Openstack horizon vulnerabilitySession fixation vulnerability in OpenStack Dashboard (Horizon) folsom-1 and 2012.1 allows remote attackers to hijack web sessions via the sessionid …EPSS 2.1%6.1CVE-2022-45582Openstack horizon open redirect vulnerabilityOpen Redirect vulnerability in Horizon Web Dashboard 19.4.0 thru 20.1.4 via the success_url parameter.EPSS 0.80%6.1CVE-2020-29565Openstack horizon open redirect vulnerabilityAn issue was discovered in OpenStack Horizon before 15.3.2, 16.x before 16.2.1, 17.x and 18.x before 18.3.3, 18.4.x, and 18.5.x. There is a lack of v…EPSS 1.4%5.5CVE-2012-5476Openstack horizon information exposure vulnerabilityWithin the RHOS Essex Preview (2012.2) of the OpenStack dashboard package, the file /etc/quantum/quantum.conf is world readable which exposes the adm…EPSS 0.40%5.5CVE-2012-5474Redhat openstack missing encryption vulnerabilityThe file /etc/openstack-dashboard/local_settings within Red Hat OpenStack Platform 2.0 and RHOS Essex Release (python-django-horizon package before 2…EPSS 0.34%5.5CVE-2013-4471Openstack horizon improper authentication vulnerabilityThe Identity v3 API in OpenStack Dashboard (Horizon) before 2013.2 does not require the current password when changing passwords for user accounts, w…EPSS 1.2%5.4CVE-2016-4428Openstack horizon cross-site scripting vulnerabilityCross-site scripting (XSS) vulnerability in OpenStack Dashboard (Horizon) 8.0.1 and earlier and 9.0.0 through 9.0.1 allows remote authenticated users…EPSS 2.1%

Source: NIST National Vulnerability Database (record CVE-2012-3540), CISA KEV, FIRST EPSS (scores of 2026-11-14). This page is refreshed as NVD updates the record.