CVE-2023-29519: 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. A registered user can perform remote code execution leading to privilege escalation by injecting the proper code in the “property” field of an attachment selector, as a gadget of their own dashboard. Note that the vulnerability does not impact comments of a wiki. The vulnerability has been patched in XWiki 13.10.11, 14.4.8, 14.10.2, 15.0-rc-1. Users are advised to upgrade. There are no known workarounds for this vulnerability.

References

github.com/advisories/GHSA-3hjg-cghv-22ww
github.com/xwiki/xwiki-platform/commit/5e8725b4272cd3e5be09d3ca84273be2da6869c1
github.com/xwiki/xwiki-platform/security/advisories/GHSA-3hjg-cghv-22ww
jira.xwiki.org/browse/XWIKI-20364
nvd.nist.gov/vuln/detail/CVE-2023-29519

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