CVE-2023-34464

Public Exploit
XWiki vulnerable to stored cross-site scripting via any wiki document and the displaycontent/rendercontent template

Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Starting in version 2.2.1 until versions 14.4.8, 14.10.5, and 15.1RC1 of org.xwiki.platform:xwiki-platform-web and any version prior to 14.4.8, 14.10.5, and 15.1.RC1 of org.xwiki.platform:xwiki-platform-web-templates, any user who can edit a document in a wiki like the user profile can create a stored cross-site scripting attack. The attack occurs by putting plain HTML code into that document and then tricking another user to visit that document with the `displaycontent` or `rendercontent` template and plain output syntax. If a user with programming rights is tricked into visiting such a URL, arbitrary actions be performed with this user's rights, impacting the confidentiality, integrity, and availability of the whole XWiki installation. This has been patched in XWiki 14.4.8, 14.10.5 and 15.1RC1 by setting the content type of the response to plain text when the output syntax is not an HTML syntax.

Category

9.0
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 1.55% Top 20%
Vendor Advisory github.com Vendor Advisory github.com Vendor Advisory xwiki.org
Affected: xwiki xwiki-platform
Published at:
Updated at:

References

Link Tags
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-fp7h-f9f5-x4q7 vendor advisory exploit
https://github.com/xwiki/xwiki-platform/commit/53e8292a31ec70fba5e1d705a4ac443658b9e6df patch vendor advisory
https://jira.xwiki.org/browse/XWIKI-20290 patch exploit vendor advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2023-34464?
CVE-2023-34464 has been scored as a critical severity vulnerability.
How to fix CVE-2023-34464?
To fix CVE-2023-34464, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-34464 being actively exploited in the wild?
It is possible that CVE-2023-34464 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-34464?
CVE-2023-34464 affects xwiki xwiki-platform.
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