CVE-2011-1772 Cross-site Scripting in Apache Struts

What is CVE-2011-1772?

CVE-2011-1772 is a low-severity cross-site scripting vulnerability in Apache Struts, published on 13 May 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Multiple cross-site scripting (XSS) vulnerabilities in XWork in Apache Struts 2.x before 2.2.3, and OpenSymphony XWork in OpenSymphony WebWork, allow remote attackers to inject arbitrary web script or HTML via vectors involving (1) an action name, (2) the action attribute of an s:submit element, or (3) the method attribute of an s:submit element.

Weakness: CWE-79

Which versions are affected by CVE-2011-1772?

2 open source packages ship an affected version, including org.apache.struts:struts2-core. It affects 3 products.

Products include Apache Struts, Opensymphony Webwork, Opensymphony Xwork.

How do I fix CVE-2011-1772?

Upgrade org.apache.struts:struts2-core to 2.2.3 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2011-1772 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-1772 exists.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Apache Struts

• CVE-2020-17530 Apache Struts Remote Code Execution Exploited Critical 9.8
• CVE-2017-9791 Apache Struts 1 Improper Input Validation Exploited Critical 9.8
• CVE-2017-5638 Apache Struts Remote Code Execution Exploited Critical 9.8
• CVE-2012-0391 Apache Struts 2 Improper Input Validation Exploited Critical 9.8
• CVE-2018-11776 Apache Struts Remote Code Execution Exploited High 8.1

All Apache Struts vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-56f8-g68r-j699.