CVE-2014-3628: Apache Solr - Improper Neutralization of Input During Web Page Generation

org.apache.solr:solr Updated 02 Oct 2025

Summary

17/05/2022

Disclosed on

CVE-2014-3628

CVE

Yes i

Fix available

Moderate

Severity

Not published

CVSS Score

CVE-2014-3628: Improper Neutralization of Input During Web Page Generation in Apache Solr. Affects org.apache.solr:solr versions >= 4.0.0, < 4.10.3. Fixed in 4.10.3. How to fix ↓

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Background

Apache Solr is an open-source search platform built on Apache Lucene. It provides full-text search, hit highlighting, faceted search, real-time indexing, and more. Solr is widely used for building search applications and is written in Java. The vulnerability in question affects Solr versions 4.x before 4.10.3. Solr's Admin UI Plugin / Stats page is susceptible to a cross-site scripting (XSS) attack, allowing remote attackers to inject arbitrary web script or HTML through the fieldvaluecache object.

Vulnerability Detail

The vulnerability arises due to improper neutralization of input during web page generation in Apache Solr. By exploiting this vulnerability, an attacker can inject malicious scripts or HTML code into the Admin UI Plugin / Stats page. This can lead to various consequences, including the execution of arbitrary code in the context of the victim's browser, session hijacking, or the theft of sensitive information.

How To Fix

Minimum fixed version

4.10.3

This is the first release that contains the fix.

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Workaround

If upgrading to the latest version is not immediately feasible, a temporary workaround is to disable or restrict access to the Admin UI Plugin / Stats page. This can be achieved by modifying the Solr configuration to remove or restrict the plugin's functionality. Here's an example of how to disable the plugin in the solrconfig.xml file:

<requestHandler name="/admin/stats" class="solr.admin.AdminHandlers" />

By removing or commenting out this line, the vulnerable functionality will be disabled.

Conclusion

In conclusion, the CVE-2014-3628 vulnerability in Apache Solr exposes the Admin UI Plugin / Stats page to cross-site scripting attacks. Upgrading to version 4.10.3 or later is the recommended solution to mitigate this vulnerability. If immediate upgrade is not possible, disabling or restricting access to the vulnerable functionality can serve as a temporary workaround. For further assistance or support in vulnerability remediation, please contact DevNack.com.

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