HOMEVULNERABILITIESCVE-2012-4451
MEDIUM

CVE-2012-4451

CWE-79Published: January 3, 2020· Updated: Jun 16, 2026

6.1
CVSS v3.1

Official Description

Multiple cross-site scripting (XSS) vulnerabilities in Zend Framework 2.0.x before 2.0.1 allow remote attackers to inject arbitrary web script or HTML via unspecified input to (1) Debug, (2) Feed\PubSubHubbub, (3) Log\Formatter\Xml, (4) Tag\Cloud\Decorator, (5) Uri, (6) View\Helper\HeadStyle, (7) View\Helper\Navigation\Sitemap, or (8) View\Helper\Placeholder\Container\AbstractStandalone, related to Escaper.

NVD Source

Technical Analysis

CVE-2012-4451 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeChanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Vendors & Products

Fedora1 product(s)
fedora
Red Hat1 product(s)
enterprise linux
zend1 product(s)
zend framework
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (16)

http://seclists.org/oss-sec/2012/q3/571Mailing List · Patch · Third Party Advisory
http://seclists.org/oss-sec/2012/q3/573Mailing List · Patch · Third Party Advisory
http://www.securityfocus.com/bid/55636Third Party Advisory · VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=860738Issue Tracking · Patch · Third Party Advisory
http://seclists.org/oss-sec/2012/q3/571Mailing List · Patch · Third Party Advisory
http://seclists.org/oss-sec/2012/q3/573Mailing List · Patch · Third Party Advisory
http://www.securityfocus.com/bid/55636Third Party Advisory · VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=860738Issue Tracking · Patch · Third Party Advisory

Quick Facts

CVE IDCVE-2012-4451
CVSS Score6.1 / 10
SeverityMEDIUM
WeaknessCWE-79
CISA KEVNo
Affected3 vendor(s)
PublishedJan 3, 2020

Related CVEs (CWE-79)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2012-4451 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.