CVE-2023-29521: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

April 20, 2023

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with view rights can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping of Macro.VFSTreeMacro. This page is not installed by default.This vulnerability has been patched in XWiki 15.0-rc-1, 14.10.2, 14.4.8, 13.10.11. Users are advised to upgrade. There are no known workarounds for this vulnerability.

References

github.com/advisories/GHSA-p67q-h88v-5jgr
github.com/xwiki/xwiki-platform/commit/fad02328f5ec7ab7fe5b932ffb5bc5c1ba7a5b12
github.com/xwiki/xwiki-platform/security/advisories/GHSA-p67q-h88v-5jgr
jira.xwiki.org/browse/XWIKI-20260
nvd.nist.gov/vuln/detail/CVE-2023-29521

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