CVE-2022-27166 XSS vulnerability on XHRHtml2Markup.jsp in JSPWiki 2.11.2

What is CVE-2022-27166?

CVE-2022-27166 is a medium-severity cross-site scripting vulnerability in Apache JSPWiki, published on 4 Aug 2022. 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

A carefully crafted request on XHRHtml2Markup.jsp could trigger an XSS vulnerability on Apache JSPWiki up to and including 2.11.2, which could allow the attacker to execute javascript in the victim's browser and get some sensitive information about the victim.

Weakness: CWE-79

Which versions are affected by CVE-2022-27166?

2 open source packages ship an affected version, including org.apache.jspwiki:jspwiki-main. It affects 1 product.

Products include Apache Jspwiki.

How do I fix CVE-2022-27166?

Upgrade org.apache.jspwiki:jspwiki-main to 2.11.3 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-2022-27166 being exploited?

There is no known exploitation of CVE-2022-27166 in the wild and no public exploit code.

Other vulnerabilities in Apache JSPWiki

• CVE-2026-28812 Apache JSPWiki: UserManager does not sanity-check user database at startup Critical 9.8
• CVE-2021-44140 Arbitrary file deletion on logout Critical 9.1
• CVE-2026-28813 Apache JSPWiki: JSPWiki vulnerable to JSON hijacking High 8.8
• CVE-2022-34158 User Group Privilege Escalation High 8.8
• CVE-2022-24947 Apache JSPWiki CSRF Account Takeover High 8.8

Sources

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

Also known as GHSA-2fxf-qj94-3f83.