CVE-2023-29516

Public Exploit
Code injection from view right on XWiki.AttachmentSelector in xwiki-platform

Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with view rights on `XWiki.AttachmentSelector` can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping in the "Cancel and return to page" button. This page is installed by default. This vulnerability has been patched in XWiki 15.0-rc-1, 14.10.1, 14.4.8, and 13.10.11. There are no known workarounds for this vulnerability.

Category

9.9
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 20.28% Top 5%
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-3989-4c6x-725f patch vendor advisory exploit
https://github.com/xwiki/xwiki-platform/commit/aca1d677c58563bbe6e35c9e1c29fd8b12ebb996 patch
https://jira.xwiki.org/browse/XWIKI-20275 patch exploit vendor advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2023-29516?
CVE-2023-29516 has been scored as a critical severity vulnerability.
How to fix CVE-2023-29516?
To fix CVE-2023-29516, 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-2023-29516 being actively exploited in the wild?
It is possible that CVE-2023-29516 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~20% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-29516?
CVE-2023-29516 affects xwiki xwiki-platform.
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