CVE-2023-29518: 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 Invitation.InvitationCommon. This page is installed by default. The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.1, 14.4.8, and 13.10.11. Users are advised to upgrade. There are no known workarounds for this issue.

References

github.com/advisories/GHSA-px54-3w5j-qjg9
github.com/xwiki/xwiki-platform/commit/3d055a0a5ec42fdebce4d71ee98f94553fdbfebf
github.com/xwiki/xwiki-platform/security/advisories/GHSA-px54-3w5j-qjg9
jira.xwiki.org/browse/XWIKI-20283
nvd.nist.gov/vuln/detail/CVE-2023-29518

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