CVE-2023-36471: Xwiki commons xml Xwiki-commons-xml's HTML Sanitizer Allows Form Vulnerability
CRITICALCVE-2023-36471 is a CRITICAL (CVSS 9.0) xwiki-commons-xml's html sanitizer allows form vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Xwiki commons xml libraries in the Maven ecosystem. The issue involves xwiki-commons-xml's html sanitizer allows form elements in restricted. Remediation is available by upgrading affected packages to version 14.10.6, 15.2-rc-1.
CVE-2023-36471 at a Glance
Security Impact
CVSS: 9.0
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H).
How to Fix CVE-2023-36471
To remediate this vulnerability, upgrade all affected Xwiki commons xml dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
<dependency>
<groupId>org.xwiki.commons</groupId>
<artifactId>xwiki-commons-xml</artifactId>
<version>14.10.6</version>
</dependency><dependency>
<groupId>org.xwiki.commons</groupId>
<artifactId>xwiki-commons-xml</artifactId>
<version>15.2-rc-1</version>
</dependency>Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:tree -Dincludes=org.xwiki.commonsHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2023-36471, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:tree -Dincludes=org.xwiki.commonsAnalyze the terminal output to locate any version of Xwiki commons xml in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 14.10.6), your application is affected.
Note: The mvn dependency:tree -Dincludes=org.xwiki.commons command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Xwiki commons xml, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2023-36471 Affected Xwiki commons xml Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
org.xwiki.commons:xwiki-commons-xml
|
Maven |
≥ 14.6-rc-1
< 14.10.6
|
14.10.6
|
|
org.xwiki.commons:xwiki-commons-xml
|
Maven |
≥ 15.0-rc-1
< 15.2-rc-1
|
15.2-rc-1
|
References
Frequently Asked Questions
What is CVE-2023-36471?
Which Xwiki commons xml versions are affected?
What version fixes CVE-2023-36471?
Is xwiki-commons-xml affected?
What is the CVSS score of CVE-2023-36471?
What CWE is associated with CVE-2023-36471?
How can I check Maven dependencies for CVE-2023-36471?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-6pqf-c99p-758v",
"modified" : "2023-06-30T20:41:50Z",
"published" : "2023-06-30T20:41:50Z",
"aliases" : [ "CVE-2023-36471" ],
"summary" : "org.xwiki.commons:xwiki-commons-xml's HTML sanitizer allows form elements in restricted",
"details" : "### Impact\n\nThe HTML sanitizer that is included in XWiki since version 14.6RC1 allowed form and input HTML tags. In the context of XWiki, this allows an attacker without script right to either create forms that can be used for phishing attacks or also in the context of a sheet, the attacker could add an input like `{{html}}<input type=\"hidden\" name=\"content\" value=\"{{groovy}}println("Hello from Groovy!")\" />{{/html}}` that would allow remote code execution when it is submitted by an admin (the sheet is rendered as part of the edit form). The attacker would need to ensure that the edit form looks plausible, though, which can be non-trivial as without script right the attacker cannot display the regular content of the document.\n\n### Patches\nThis has been patched in XWiki 14.10.6 and 15.2RC1 by removing the central form-related tags from the list of allowed tags.\n\n### Workarounds\nAn admin can manually disallow the tags by adding `form, input, select, textarea, button` to the configuration option `xml.htmlElementSanitizer.forbidTags` in the `xwiki.properties` configuration file.\n\n### References\n* https://jira.xwiki.org/browse/XCOMMONS-2634\n* https://github.com/xwiki/xwiki-commons/commit/99484d48e899a68a1b6e33d457825b776c6fe8c3\n",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Maven",
"name" : "org.xwiki.commons:xwiki-commons-xml"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "14.6-rc-1"
}, {
"fixed" : "14.10.6"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.xwiki.commons:xwiki-commons-xml"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "15.0-rc-1"
}, {
"fixed" : "15.2-rc-1"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-6pqf-c99p-758v"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-36471"
}, {
"type" : "WEB",
"url" : "https://github.com/xwiki/xwiki-commons/commit/99484d48e899a68a1b6e33d457825b776c6fe8c3"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/xwiki/xwiki-commons"
}, {
"type" : "WEB",
"url" : "https://jira.xwiki.org/browse/XCOMMONS-2634"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-74", "CWE-79" ],
"severity" : "CRITICAL",
"github_reviewed" : true,
"github_reviewed_at" : "2023-06-30T20:41:50Z",
"nvd_published_at" : "2023-06-29T20:15:10Z"
}
}