XWiki xwiki-commons-xml prior 14.10.4/15.0-rc1 HTML Sanitizer HTML injection

Summaryinfo

A vulnerability was found in XWiki xwiki-commons-xml and classified as problematic. Affected is an unknown function of the component HTML Sanitizer. The manipulation results in HTML injection. This vulnerability is cataloged as CVE-2023-31126. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in XWiki xwiki-commons-xml (Content Management System). Affected is an unknown code of the component HTML Sanitizer. The manipulation with an unknown input leads to a html injection vulnerability. CWE is classifying the issue as CWE-86. The product does not neutralize or incorrectly neutralizes invalid characters or byte sequences in the middle of tag names, URI schemes, and other identifiers. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

`org.xwiki.commons:xwiki-commons-xml` is an XML library used by the open-source wiki platform XWiki. The HTML sanitizer, introduced in version 14.6-rc-1, allows the injection of arbitrary HTML code and thus cross-site scripting via invalid data attributes. This vulnerability does not affect restricted cleaning in HTMLCleaner as there attributes are cleaned and thus characters like `/` and `>` are removed in all attribute names. This problem has been patched in XWiki 14.10.4 and 15.0 RC1 by making sure that data attributes only contain allowed characters. There are no known workarounds apart from upgrading to a version including the fix.

The weakness was shared 05/09/2023 as GHSA-pv7v-ph6g-3gxv. The advisory is available at github.com. This vulnerability is traded as CVE-2023-31126 since 04/24/2023. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 14.10.4 or 15.0-rc1 eliminates this vulnerability. Applying the patch 0b8e9c45b7e7457043938f35265b2aa5adc76a68 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Content Management System

Vendor

• XWiki

Name

• xwiki-commons-xml

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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