Summary
Zend Framework XXE Vulnerability
The (1) Zend_Feed_Rss and (2) Zend_Feed_Atom classes in Zend_Feed in Zend Framework 1.11.x before 1.11.15 and 1.12.x before 1.12.1 allow remote attackers to read arbitrary files, send HTTP requests to intranet servers, and possibly cause a denial of service (CPU and memory consumption) via an XML External Entity (XXE) attack.
Impact
An XML parser processes external entity references in untrusted input, causing the server to fetch internal resources or remote URLs. Typical impact: local file disclosure, server-side request forgery, or denial of service.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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zendframework/zendframework1 to 1.11.15 or later; zendframework/zendframework1 to 1.12.1 or later
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is CVE-2012-5657? CVE-2012-5657 is a medium-severity XML external entity injection (XXE) vulnerability in zendframework/zendframework1 (composer), affecting versions < 1.11.15. It is fixed in 1.11.15, 1.12.1. An XML parser processes external entity references in untrusted input, causing the server to fetch internal resources or remote URLs.
- Which versions of zendframework/zendframework1 are affected by CVE-2012-5657? zendframework/zendframework1 (composer) versions < 1.11.15 is affected.
- Is there a fix for CVE-2012-5657? Yes. CVE-2012-5657 is fixed in 1.11.15, 1.12.1. Upgrade to this version or later.
- Is CVE-2012-5657 exploitable, and should I be worried? Whether CVE-2012-5657 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2012-5657 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2012-5657?
- Upgrade
zendframework/zendframework1to 1.11.15 or later - Upgrade
zendframework/zendframework1to 1.12.1 or later
- Upgrade