CVE-2015-2944: Cross-Site Scripting Vulnerabilities in Apache Sling
Summary
CVE-2015-2944: Improper Neutralization of Input During Web Page Generation in Apache Sling. Affects org.apache.sling:org.apache.sling.api versions < 2.2.2. Fixed in 2.2.2. How to fix ↓
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Background
Apache Sling is a web framework for building content-oriented applications. It provides a RESTful framework to access content and exposes content through Apache Sling's Resource API. The Apache Sling API and Apache Sling Servlets Post are two components of Apache Sling that are affected by this vulnerability.
Vulnerability Detail
The vulnerability, identified as CVE-2015-2944, is an instance of multiple cross-site scripting (XSS) vulnerabilities in Apache Sling API before version 2.2.2 and Apache Sling Servlets Post before version 2.1.2. These vulnerabilities allow remote attackers to inject arbitrary web script or HTML via the URI. The specific affected classes are org/apache/sling/api/servlets/HtmlResponse and org/apache/sling/servlets/post/HtmlResponse. The impact of these vulnerabilities can lead to unauthorized access, data theft, or the execution of malicious code on the affected system.
How To Fix
Latest published version: 3.0.2 as of 22 Oct 2026
Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
2.2.2
This is the first release that contains the fix.
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Workaround
There is no known workaround for this vulnerability. It is essential to apply the recommended fix by upgrading to the patched versions of Apache Sling API and Apache Sling Servlets Post.
Conclusion
In conclusion, the CVE-2015-2944 vulnerability in Apache Sling API and Apache Sling Servlets Post exposes applications to cross-site scripting attacks. To mitigate this vulnerability, it is crucial to upgrade to the patched versions of the affected components. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for org.apache.sling:org.apache.sling.api →
FAQ
Apache Sling is a web framework for building content-oriented applications. It provides a RESTful framework to access content and exposes content through Apache Sling's Resource API.
Cross-site scripting (XSS) is a type of security vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users. This can lead to unauthorized access, data theft, or the execution of malicious code.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities in software using just the pom.xml file.
The impact of this vulnerability can lead to unauthorized access, data theft, or the execution of malicious code on the affected system.
There are no known workarounds for this vulnerability. It is crucial to apply the recommended fix by upgrading to the patched versions of Apache Sling API and Apache Sling Servlets Post.
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