cve-2023-29528
Vulnerability from cvelistv5
Published
2023-04-20 17:08
Modified
2025-02-04 21:35
Severity ?
9.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Summary
XWiki Commons are technical libraries common to several other top level XWiki projects. The "restricted" mode of the HTML cleaner in XWiki, introduced in version 4.2-milestone-1 and massively improved in version 14.6-rc-1, allowed the injection of arbitrary HTML code and thus cross-site scripting via invalid HTML comments. As a consequence, any code relying on this "restricted" mode for security is vulnerable to JavaScript injection ("cross-site scripting"/XSS). When a privileged user with programming rights visits such a comment in XWiki, the malicious JavaScript code is executed in the context of the user session. This allows server-side code execution with programming rights, impacting the confidentiality, integrity and availability of the XWiki instance. This problem has been patched in XWiki 14.10, HTML comments are now removed in restricted mode and a check has been introduced that ensures that comments don't start with `>`. There are no known workarounds apart from upgrading to a version including the fix.
References
security-advisories@github.comhttps://github.com/xwiki/xwiki-commons/commit/8ff1a9d7e5d7b45b690134a537d53dc05cae04abPatch
security-advisories@github.comhttps://github.com/xwiki/xwiki-commons/security/advisories/GHSA-x37v-36wv-6v6hVendor Advisory
security-advisories@github.comhttps://jira.xwiki.org/browse/XCOMMONS-2568Vendor Advisory
security-advisories@github.comhttps://jira.xwiki.org/browse/XWIKI-20348Exploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/xwiki/xwiki-commons/commit/8ff1a9d7e5d7b45b690134a537d53dc05cae04abPatch
af854a3a-2127-422b-91ae-364da2661108https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-x37v-36wv-6v6hVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://jira.xwiki.org/browse/XCOMMONS-2568Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://jira.xwiki.org/browse/XWIKI-20348Exploit, Vendor Advisory
Impacted products
Vendor Product Version
xwiki xwiki-commons Version: >= 4.2-milestone-1, < 14.10
 Create a notification for this product.
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